NPPES file of Aug 9, 2026

Heather M. Bartz, DO

Internal Medicine Physician · Phoenix, AZ

Heather M. Bartz, DO is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1861417271, issued on Jul 13, 2006. Check the license (Arizona 4376, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861417271
Name
Heather M. Bartz
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4376 AZ
Self-reported in NPPES; status is on the state search
Practice location
1111 E Mcdowell RD, Phoenix, AZ 85006
Phone
(602) 239-2296
Enumerated
Jul 13, 2006
Record last updated
Jan 25, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(602) 239-2084
Medicare enrollment
Enrolled (PECOS I20061117000101); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1111 E Mcdowell RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hamed Abbaszadegan, MDInternal Medicine Physician1407083579
  2. Elissa Abbruscato, MDInternal Medicine Physician1356603021
  3. Mohamed Abdelhabib, MDPulmonary Disease Physician1184287161
  4. Anurag Adhikari, M.D.Geriatric Medicine (Internal Medicine) Physician1861137952
  5. Nathanael Adjei, M.D.Internal Medicine Physician1134651896
  6. Nimit Agarwal, MDInternal Medicine Physician1811155245

Verify Heather M. Bartz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 4376
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% fewer Medicare Part D claims than the average internal medicine physician in 2024

888 Medicare Part D claims for 94 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Heather Bartz888
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium61 claims
  2. Amlodipine Besylate44 claims
  3. Montelukast Sodium41 claims
  4. Rosuvastatin Calcium36 claims
  5. Lisinopril28 claims
  6. Sodium Chloride27 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $18.10

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heather Bartz$18.10
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Banner - University Hospital Based Physicians LLCPhoenix, AZ
  2. Banner - University Primary Care Physicians LLCPhoenix, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Heather M. Bartz among 2,853 internal medicine physician records in Arizona

Heather M. Bartz, DO is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2002 · median 2003 among the 1,643 with a school on file
  • Record last updated2010 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

695 internal medicine physician records list a practice address in Phoenix

They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ricardo Celaya, M.D.Phoenix, AZ 850061861476095
  2. Lynn Crocker, D.O.Phoenix, AZ 850061558357947
  3. Charles David, D.O.Phoenix, AZ 850061669447652
  4. Lorna Honan, MDPhoenix, AZ 850061154395531
  5. Holger Kranich, M.D.Phoenix, AZ 850061780660266
  6. Marc Lee, MDPhoenix, AZ 850061962498709
  7. Stephen Leshin, M.D.Phoenix, AZ 850061396742771
  8. Anita Murcko, M.D.Phoenix, AZ 850061477558757

Common questions

What is Heather M. Bartz, DO's NPI number?

Heather M. Bartz, DO's National Provider Identifier (NPI) is 1861417271, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather M. Bartz, DO located?

The NPPES record lists a practice address at 1111 E Mcdowell RD, Phoenix, AZ, 85006. Phone: (602) 239-2296. Providers update this record themselves, so call before visiting.

How can I verify Heather M. Bartz, DO's license?

NPPES lists Arizona license number 4376, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Heather M. Bartz, DO prescribe under Medicare Part D?

In 2024, Heather M. Bartz, DO had 888 Medicare Part D claims for 94 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.