Registry data as of Aug 27, 2026

Stephen Njoroge, MD

Internal Medicine Physician · Yuma, AZ

Stephen Njoroge, MD is an internal medicine physician with a practice address in Yuma, Arizona, and NPI 1235368176, issued on Jul 14, 2009. Check the license (Arizona R71604, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1235368176
Name
Stephen Njoroge
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
R71604 AZ
Self-reported in NPPES; status is on the state search
Practice location
2400 S Avenue A, Yuma, AZ 85364
Phone
(928) 336-3213
Enumerated
Jul 14, 2009
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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Also registered at 2400 S Avenue A

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

  1. Muhammad Aamer, M.D.Family Medicine Physician1437574720
  2. Rafi Aboona, MDInternal Medicine Physician1780315374
  3. Asmerom Adhanom, D.O.Anesthesiology Physician1720440779
  4. Sara Ahmed, MDInternal Medicine Physician1144524828
  5. Ayoola Ajayi, MBBSAnesthesiology Physician1851821482
  6. Deanna AlcalaInpatient Obstetric Registered Nurse1942164934

Verify Stephen Njoroge in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R71604
    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.

99% fewer Medicare Part D claims than the average internal medicine physician in 2024

19 Medicare Part D claims for 11 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.

  1. Stephen Njoroge19
  2. Specialty average2,785

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.

50 internal medicine physician records list a Yuma practice address

They are 50 of the 1,821 NPPES records with a Yuma practice address, and 3,429 internal medicine physician records in Arizona.

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Jaber Abawi, MDPayson, AZ1629038542
  3. Demsas Abay, MDPeoria, AZ1720312390
  4. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  5. Hassan Abbas, D.O.Mesa, AZ1477294775
  6. Jalal Abbas, M.D.Sun City West, AZ1205895034
  7. Mohemmedd Khalid AbbasPhoenix, AZ1316366651
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Anam Abbasi, MDPhoenix, AZ1568990695
  10. Hamed Abbaszadegan, MDPhoenix, AZ1407083579

Common questions

What is Stephen Njoroge, MD's NPI number?

Stephen Njoroge, MD's National Provider Identifier (NPI) is 1235368176, issued on Jul 14, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Njoroge, MD located?

The NPPES record lists a practice address at 2400 S Avenue A, Yuma, AZ, 85364. Phone: (928) 336-3213. Providers update this record themselves, so call before visiting.

How can I verify Stephen Njoroge, MD's license?

NPPES lists Arizona license number R71604, 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 Stephen Njoroge, MD prescribe under Medicare Part D?

In 2024, Stephen Njoroge, MD had 19 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.