Individual provider

Alexandria Hill, M.D.

Obstetrics & Gynecology Physician Maternal & Fetal Medicine Physician Diagnostic Ultrasound Physician Medicare enrolled

Alexandria Hill, M.D. is an Obstetrics & Gynecology Physician in Yakima, WA, registered under NPI 1598956591. 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 5109 SUMMITVIEW AVE, Yakima, WA 98908. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

5109 SUMMITVIEW AVE, Yakima, WA 98908 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
MD61538144 WA Obstetrics & Gynecology Physician primary
301891 NY Maternal & Fetal Medicine Physician
ME143475 FL Maternal & Fetal Medicine Physician
N9715 TX Maternal & Fetal Medicine Physician
D0094794 MD Diagnostic Ultrasound Physician
16840 NV Maternal & Fetal Medicine Physician

Licences are recorded in 6 states: WA, NY, FL, TX, MD, NV. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Obstetrics/gynecology
PAC ID
8325211394

Enrolled in Medicare 8 times, across 8 states:

StateEnrollment IDProvider type
Texas I20111108000405 Practitioner - Obstetrics/gynecology
Arizona I20140828000001 Practitioner - Obstetrics/gynecology
Nevada I20180601000571 Practitioner - Other (physician)
New York I20200304002528 Practitioner - Obstetrics/gynecology
Missouri I20231206001852 Practitioner - Obstetrics/gynecology
District of Columbia I20240410002604 Practitioner - Obstetrics/gynecology
Massachusetts I20240508002444 Practitioner - Obstetrics/gynecology
Washington I20250926000693 Practitioner - Obstetrics/gynecology

Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. There are 8 separate enrolment records across 8 states (TX, AZ, NV, NY, MO, DC, MA, WA). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 6 states

This provider holds licences in 6 states: Florida, Maryland, Nevada, New York, Texas and Washington. The practice address on file is in Yakima, WA, 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.

FL Florida
Licence
ME143475
Specialty
Maternal & Fetal Medicine Physician
Verify with the FL board →
MD Maryland
Licence
D0094794
Specialty
Diagnostic Ultrasound Physician
Verify with the MD board →
NV Nevada
Licence
16840
Specialty
Maternal & Fetal Medicine Physician
Verify with the NV board →
NY New York
Licence
301891
Specialty
Maternal & Fetal Medicine Physician
Verify with the NY board →
TX Texas
Licence
N9715
Specialty
Maternal & Fetal Medicine Physician
Verify with the TX board →
WA Washington practice address
Licence
MD61538144
Specialty
Obstetrics & Gynecology Physician
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 Obstetrics & Gynecology covers

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
Allopathic & Osteopathic Physicians Obstetrics & Gynecology

All registered taxonomy codes

This provider registers 6 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207V00000X Obstetrics & Gynecology Physician MD61538144 WA primary
207VM0101X Maternal & Fetal Medicine Physician Maternal & Fetal Medicine 301891 NY
207VM0101X Maternal & Fetal Medicine Physician Maternal & Fetal Medicine ME143475 FL
207VM0101X Maternal & Fetal Medicine Physician Maternal & Fetal Medicine N9715 TX
2085U0001X Diagnostic Ultrasound Physician Diagnostic Ultrasound D0094794 MD
207VM0101X Maternal & Fetal Medicine Physician Maternal & Fetal Medicine 16840 NV

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.

NPI1598956591 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 5, 2007
Last updatedMar 25, 2026
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 5109 SUMMITVIEW AVE
Yakima, WA 98908
(509) 907-6300
Fax (509) 865-0757
Mailing address 3267 BEE CAVES RD STE 107334
Austin, TX 78746
This record was updated on Mar 25, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1598956591 passes the NPI check digit test The final digit 1 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 5 9 8 9 5 6 5 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 9 5 3 5 9

Sum = 79 · next multiple of 10 = 80 · check digit = 1 · actual last digit = 1

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 1598956591?
NPI 1598956591 is the National Provider Identifier assigned to Alexandria Hill, M.D. in Yakima, WA. 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 Obstetrics & Gynecology Physician cover?
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
How do I contact Alexandria Hill, M.D.?
The phone number on file with NPPES is (509) 907-6300, last updated Mar 25, 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 Alexandria Hill, M.D. 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 1598956591 a valid number?
Yes. 1598956591 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.