Individual provider

Alfreda Shields, FNP, PMHNP

Nurse Practitioner Family Nurse Practitioner Psychiatric/Mental Health Nurse Practitioner Medicare enrolled

Alfreda Shields, FNP, PMHNP is a Nurse Practitioner in Saint Louis, MO, registered under NPI 1497021810. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 4066 DUNNICA AVE, Saint Louis, MO 63116. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

4066 DUNNICA AVE, Saint Louis, MO 63116 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
2012001249 MO Nurse Practitioner primary
694307 CA Family Nurse Practitioner
2020037590 MO Psychiatric/Mental Health Nurse…
61618369 WA Family Nurse Practitioner
222704 OK Family Nurse Practitioner
14174711-4405 UT Family Nurse Practitioner
277000588 IL Nurse Practitioner
2052467 MN Family Nurse Practitioner
243616 MT Family Nurse Practitioner
2012001249 MO Family Nurse Practitioner
10032618 OR Family Nurse Practitioner
330311 AZ Family Nurse Practitioner
229519 AK Family Nurse Practitioner
49210 HI Family Nurse Practitioner
77844 NM Family Nurse Practitioner

Licences are recorded in 13 states: MO, CA, WA, OK, UT, IL, MN, MT, OR, AZ, AK, HI, NM. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
7810145133

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 13 states

This provider holds licences in 13 states: Alaska, Arizona, California, Hawaii, Illinois, Minnesota, Missouri, Montana, New Mexico, Oklahoma, Oregon, Utah and Washington. The practice address on file is in Saint Louis, MO, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AK Alaska
Licence
229519
Specialty
Family Nurse Practitioner
Verify with the AK board →
AZ Arizona
Licence
330311
Specialty
Family Nurse Practitioner
Verify with the AZ board →
CA California
Licence
694307
Specialty
Family Nurse Practitioner
Verify with the CA board →
HI Hawaii
Licence
49210
Specialty
Family Nurse Practitioner
Verify with the HI board →
IL Illinois
Licence
277000588
Specialty
Nurse Practitioner
Verify with the IL board →
MN Minnesota
Licence
2052467
Specialty
Family Nurse Practitioner
Verify with the MN board →
MO Missouri practice address
Licence
2012001249
Specialty
Nurse Practitioner
Verify with the MO board →
MT Montana
Licence
243616
Specialty
Family Nurse Practitioner
Verify with the MT board →
NM New Mexico
Licence
77844
Specialty
Family Nurse Practitioner
Verify with the NM board →
OK Oklahoma
Licence
222704
Specialty
Family Nurse Practitioner
Verify with the OK board →
OR Oregon
Licence
10032618
Specialty
Family Nurse Practitioner
Verify with the OR board →
UT Utah
Licence
14174711-4405
Specialty
Family Nurse Practitioner
Verify with the UT board →
WA Washington
Licence
61618369
Specialty
Family Nurse Practitioner
Verify with the WA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Nurse Practitioner covers

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners. NUCC Health Care Provider Taxonomy, code 363L00000X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner

All registered taxonomy codes

This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363L00000X Nurse Practitioner 2012001249 MO primary
363LF0000X Family Nurse Practitioner Family 694307 CA
363LP0808X Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health 2020037590 MO
363LF0000X Family Nurse Practitioner Family 61618369 WA
363LF0000X Family Nurse Practitioner Family 222704 OK
363LF0000X Family Nurse Practitioner Family 14174711-4405 UT
363L00000X Nurse Practitioner 277000588 IL
363LF0000X Family Nurse Practitioner Family 2052467 MN
363LF0000X Family Nurse Practitioner Family 243616 MT
363LF0000X Family Nurse Practitioner Family 2012001249 MO
363LF0000X Family Nurse Practitioner Family 10032618 OR
363LF0000X Family Nurse Practitioner Family 330311 AZ
363LF0000X Family Nurse Practitioner Family 229519 AK
363LF0000X Family Nurse Practitioner Family 49210 HI
363LF0000X Family Nurse Practitioner Family 77844 NM

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1497021810 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 29, 2012
Last updatedJan 12, 2026
StatusActive
Sole proprietorNo
CredentialFNP, PMHNP
Practice address 4066 DUNNICA AVE
Saint Louis, MO 63116
(636) 224-1700
Mailing address PO BOX 844715
Kansas City, MO 64184
Other identifiers 2020037590 · PMHNP (MO)
2020037590 (MO)
This record was updated on Jan 12, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1497021810 passes the NPI check digit test The final digit 0 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 4 9 7 0 2 1 8 1
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 4 9 7 0 2 2 8 2

Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1497021810?
NPI 1497021810 is the National Provider Identifier assigned to Alfreda Shields, FNP, PMHNP in Saint Louis, MO. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Nurse Practitioner cover?
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional…
How do I contact Alfreda Shields, FNP, PMHNP?
The phone number on file with NPPES is (636) 224-1700, last updated Jan 12, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Alfreda Shields, FNP, PMHNP accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1497021810 a valid number?
Yes. 1497021810 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.