Individual provider

Kristen Molander, ARNP

Internal Medicine Physician Nurse Practitioner Adult Health Nurse Practitioner Medicare enrolled

Kristen Molander, ARNP is an Internal Medicine Physician in Tucson, AZ, registered under NPI 1053755223. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 2940 S 6TH AVE, Tucson, AZ 85713. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

2940 S 6TH AVE, Tucson, AZ 85713 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
279267 AZ Internal Medicine Physician primary
H164740 IA Nurse Practitioner
147175 IA Adult Health Nurse Practitioner
LM188 AZ Midwife
LP047069 AZ Licensed Practical Nurse

Licences are recorded in 2 states: AZ, IA. 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
8527463843

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Iowa I20210825002060 Practitioner - Nurse Practitioner
Arizona I20220928002892 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 2 separate enrolment records across 2 states (IA, AZ). 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 2 states

This provider holds licences in 2 states: Arizona and Iowa. The practice address on file is in Tucson, AZ, 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.

AZ Arizona practice address
Licence
279267
Specialty
Internal Medicine Physician
Verify with the AZ board →
IA Iowa
Licence
H164740
Specialty
Nurse Practitioner
Verify with the IA 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 Internal Medicine covers

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
Allopathic & Osteopathic Physicians Internal Medicine

All registered taxonomy codes

This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207R00000X Internal Medicine Physician 279267 AZ primary
363L00000X Nurse Practitioner H164740 IA
363LA2200X Adult Health Nurse Practitioner Adult Health 147175 IA
176B00000X Midwife LM188 AZ
164W00000X Licensed Practical Nurse LP047069 AZ

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.

NPI1053755223 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateApr 18, 2013
Last updatedMar 26, 2026
StatusActive
Sole proprietorNo
CredentialARNP
Practice address 2940 S 6TH AVE
Tucson, AZ 85713
(520) 613-1001
Fax (520) 504-6483
Mailing address 102 WOODMONT BLVD STE 600
Nashville, TN 37205
This record was updated on Mar 26, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1053755223 passes the NPI check digit test The final digit 3 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 0 5 3 7 5 5 2 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 1 3 5 5 1 2 4

Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3

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 1053755223?
NPI 1053755223 is the National Provider Identifier assigned to Kristen Molander, ARNP in Tucson, AZ. 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 Internal Medicine Physician cover?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive…
How do I contact Kristen Molander, ARNP?
The phone number on file with NPPES is (520) 613-1001, last updated Mar 26, 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 Kristen Molander, ARNP 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 1053755223 a valid number?
Yes. 1053755223 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.