NPPES file of Aug 9, 2026

Aaron Douglas Fox, M.D.

Addiction Medicine (Internal Medicine) Physician · Bronx, NY

Aaron Douglas Fox, M.D. is an addiction medicine (internal medicine) physician with a practice address in Bronx, New York, and NPI 1821210808, issued on May 2, 2007. Check the license (New York 242573, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821210808
Name
Aaron Douglas Fox
Credential
M.D.
Primary taxonomy
Addiction Medicine (Internal Medicine) Physician 207RA0401X
License number
242573 NY
Self-reported in NPPES; status is on the state search
Practice location
305 East 161St Street, Bronx, NY 10451
Phone
(718) 579-2500
Enumerated
May 2, 2007
Record last updated
Mar 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(718) 579-2599
Medicare enrollment
Enrolled (PECOS I20080811000006); may accept Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2004
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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Verify Aaron Douglas Fox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 242573
    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 New York license search

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38% fewer Medicare Part D claims than the average addiction medicine (internal medicine) physician in 2024

518 Medicare Part D claims for 32 beneficiaries, against an average of 829 among the 401 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Aaron Fox518
  2. Specialty average829

Most prescribed

  1. Buprenorphine-Naloxone79 claims
  2. Atorvastatin Calcium35 claims
  3. Albuterol Sulfate Hfa31 claims
  4. Lisinopril23 claims
  5. Nifedipine Er23 claims
  6. Ozempic17 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Montefiore Medical CenterBronx, NY · Acute Care Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Aaron Douglas Fox among 68 addiction medicine (internal medicine) physician records in New York

Aaron Douglas Fox, M.D. is one of 68 addiction medicine (internal medicine) physician records with a practice address in New York. 76% 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 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated2004 · median 2002 among the 28 with a school on file
  • Record last updated2021 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0401X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Internal Medicine) Physician providers in New York

There are 68 addiction medicine (internal medicine) physician records in New York.

The 8 addiction medicine (internal medicine) physician records with the nearest ZIP codes

  1. Chinazo Cunningham, MDBronx, NY 104511972696185
  2. Erin Goss, MDBronx, NY 104511265729792
  3. Shadi Nahvi, MDBronx, NY 104511821114380
  4. Joanna Starrels, M.D., M.S.Bronx, NY 104511124031729
  5. Melissa Stein, MDBronx, NY 104541699865592
  6. Constantine Diakolios, MDBronx, NY 104571366584724
  7. Giliane Joseph, M.D.Bronx, NY 104611225293301
  8. Tiffany Lu, MDBronx, NY 104611568725257

Common questions

What is Aaron Douglas Fox, M.D.'s NPI number?

Aaron Douglas Fox, M.D.'s National Provider Identifier (NPI) is 1821210808, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Douglas Fox, M.D. located?

The NPPES record lists a practice address at 305 East 161St Street, Bronx, NY, 10451. Phone: (718) 579-2500. Providers update this record themselves, so call before visiting.

How can I verify Aaron Douglas Fox, M.D.'s license?

NPPES lists New York license number 242573, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Aaron Douglas Fox, M.D. prescribe under Medicare Part D?

In 2024, Aaron Douglas Fox, M.D. had 518 Medicare Part D claims for 32 beneficiaries; the average among addiction medicine (internal medicine) physician prescribers was 829. Part D covers Medicare prescriptions only.

What is Aaron Douglas Fox, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.