NPPES file of Aug 9, 2026

Robert Foster Greenwood, D.O.

Internal Medicine Physician · Fort Wainwright, AK

Robert Foster Greenwood, D.O. is an internal medicine physician with a practice address in Fort Wainwright, Alaska, and NPI 1356638068, issued on Jul 1, 2011. Check the license (Alaska 130860, as entered in NPPES) on the Alaska State 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
1356638068
Name
Robert Foster Greenwood
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
130860 AK
1530 HI
Self-reported in NPPES; status is on the state search
Practice location
1060 Gaffney RD, Fort Wainwright, AK 99703
Phone
(907) 361-5957
Enumerated
Jul 1, 2011
Record last updated
Apr 11, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180417002607); accepts Medicare assignment
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 1060 Gaffney RD

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

  1. Patrick Bushman, PA-CPhysician Assistant1952858615
  2. Cheryl Chrisman, LPNLicensed Practical Nurse1730150202
  3. Chad Gooderham, FNPFamily Nurse Practitioner1639153091
  4. Christopher Gormley, PHARMDPharmacist1730461104
  5. Arlin Guess, RNAdministrator Registered Nurse1598747453
  6. Heather Guess, FNPFamily Nurse Practitioner1962472977

Verify Robert Foster Greenwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlaska State Medical Board
    Search for license 130860
    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 Alaska 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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

158 Medicare Part D claims for 65 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Robert Greenwood158
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium14 claims
  2. Clopidogrel12 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.

Bills Medicare through one group practice

  1. Tanana Valley Clinic LLCFairbanks, AK

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

Robert Foster Greenwood among 177 internal medicine physician records in Alaska

Robert Foster Greenwood, D.O. is one of 177 internal medicine physician records with a practice address in Alaska. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.

  • NPI issued2011 · 66% of these records are older, 33% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2011 · median 2010 among the 92 with a school on file
  • Record last updated2018 · 58% 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 Alaska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 internal medicine physician records list a practice address in Fort Wainwright

They are 4 of the 165 NPPES records with a practice address in Fort Wainwright, and 177 internal medicine physician records in Alaska.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Fohan, M.D., D.M.D.Ft Wainwright, AK 997031710954854
  2. Benjamin HowseFairbanks, AK 997031700488848
  3. Timothy Hunter, M.D.Fort Wainwright, AK 997031750744629
  4. Shane Morris, MDFort Wainwright, AK 997031962035162
  5. Matthew Byrne, MDFairbanks, AK 997011962907253
  6. Lindsay Clough, MDFairbanks, AK 997011598227894
  7. Nicholas Cosentino, D.OFairbanks, AK 997011013276898
  8. Bruce Footit, MDFairbanks, AK 997011760602866

Common questions

What is Robert Foster Greenwood, D.O.'s NPI number?

Robert Foster Greenwood, D.O.'s National Provider Identifier (NPI) is 1356638068, issued on Jul 1, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Robert Foster Greenwood, D.O. located?

The NPPES record lists a practice address at 1060 Gaffney RD, Fort Wainwright, AK, 99703. Phone: (907) 361-5957. Providers update this record themselves, so call before visiting.

How can I verify Robert Foster Greenwood, D.O.'s license?

NPPES lists Alaska license number 130860, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Robert Foster Greenwood, D.O. prescribe under Medicare Part D?

In 2024, Robert Foster Greenwood, D.O. had 158 Medicare Part D claims for 65 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.