NPPES file of Aug 9, 2026

David S. Grauman, M.D., P.C., M.R.O.

Internal Medicine Physician · Flagstaff, AZ

David S. Grauman, M.D., P.C., M.R.O. is an internal medicine physician with a practice address in Flagstaff, Arizona, and NPI 1508993429, issued on Feb 27, 2007. Check the license (Arizona 75392, 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
1508993429
Name
David S. Grauman
Credential
M.D., P.C., M.R.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
75392 AZ
Self-reported in NPPES; status is on the state search
Practice location
12340 N Eagle RD, Flagstaff, AZ 86004
Phone
(928) 686-7858
Enumerated
Feb 27, 2007
Record last updated
May 20, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →

Verify David S. Grauman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 75392    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

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75% fewer Medicare Part D claims than the average internal medicine physician in 2024

806 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. David Grauman806
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Losartan Potassium72 claims
  3. Amlodipine Besylate59 claims
  4. Carvedilol49 claims
  5. Lisinopril39 claims
  6. Furosemide38 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.

David S. Grauman among 2,853 internal medicine physician records in Arizona

David S. Grauman, M.D., P.C., M.R.O. 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 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 47% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2026 · 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).

Internal Medicine Physician providers in Arizona

There are 2,853 internal medicine physician records in Arizona.

All 2,853 in Arizona → Every provider in Flagstaff → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Lauren Breihan, M.D.Flagstaff, AZ 860041497866495
  2. Anne Newland, MDFlagstaff, AZ 860041336178912
  3. Dennis Peat, M.D.Flagstaff, AZ 860041417901075
  4. Jennifer Cortes, M.D.Flagstaff, AZ 860011225204381
  5. Rafael Fernandez, MDFlagstaff, AZ 860011831484500
  6. Alexander Hu, D.O.Flagstaff, AZ 860011306145859
  7. Julia Jacobs, M.D.Flagstaff, AZ 860011285862482
  8. Jeffrey Mazique, MDFlagstaff, AZ 860011902905300

Common questions

What is David S. Grauman, M.D., P.C., M.R.O.'s NPI number?

David S. Grauman, M.D., P.C., M.R.O.'s National Provider Identifier (NPI) is 1508993429, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is David S. Grauman, M.D., P.C., M.R.O. located?

The NPPES record lists a practice address at 12340 N Eagle RD, Flagstaff, AZ, 86004. Phone: (928) 686-7858. Providers update this record themselves, so call before visiting.

How can I verify David S. Grauman, M.D., P.C., M.R.O.'s license?

NPPES lists Arizona license number 75392, 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 David S. Grauman, M.D., P.C., M.R.O. prescribe under Medicare Part D?

In 2024, David S. Grauman, M.D., P.C., M.R.O. had 806 Medicare Part D claims for 17 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.