NPPES file of Aug 9, 2026

Joshua Michael Ammerman, M.D.

Neurological Surgery Physician · Washington, DC

Joshua Michael Ammerman, M.D. is a neurological surgery physician with a practice address in Washington, District of Columbia, and NPI 1043361124, issued on Jan 15, 2007. Check the license (District of Columbia MD034829, as entered in NPPES) on the District of Columbia Board of Medicine; 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
1043361124
Name
Joshua Michael Ammerman
Credential
M.D.
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
MD034829 DC
Self-reported in NPPES; status is on the state search
Practice location
3301 New Mexico Ave NW, Washington, DC 20016
Phone
(202) 966-6300
Enumerated
Jan 15, 2007
Record last updated
Dec 11, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080228000194); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 2000
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 3301 New Mexico Ave NW

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

  1. Matthew Ammerman, MDNeurological Surgery Physician1871764258
  2. Tricia Ashby-Scabis, AUD, FAAAAudiologist1659461846
  3. Julianne Auman, DPTPhysical Therapist1851759849
  4. Guillermo Balfour, MDPediatrics Physician1366412520
  5. Maria Bertagnolli, FNPFamily Nurse Practitioner1932424959
  6. Howard Boltansky, MDOtolaryngology Physician1689745044

Verify Joshua Michael Ammerman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD034829
    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 District of Columbia license search

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41% more Medicare Part D claims than the average neurological surgery physician in 2024

242 Medicare Part D claims for 72 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. 40 claims were for opioids.

  1. Joshua Ammerman242
  2. Specialty average172

Most prescribed

  1. Gabapentin80 claims
  2. Methylprednisolone28 claims
  3. Oxycodone-Acetaminophen23 claims
  4. Methocarbamol19 claims
  5. Meloxicam15 claims
  6. Diclofenac Sodium13 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 MIPS final score for 2023 (Medicare payment program): 20.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%69.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $1,560.26

3 payments; by number, the most common kind was food and beverage; the largest payer was Globus Medical, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joshua Ammerman$1,560
  2. Specialty average$14,926

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. Suburban/nrh Medical Rehabilitation IncBethesda, MD
  2. Washington Neurosurgical Associates, P. C.Washington, DC

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

Neurological Surgery Physician providers in District of Columbia

There are 34 neurological surgery physician records in District of Columbia.

Other neurological surgery physician records in District of Columbia

  1. Saleem Abdulrauf, MDWashington, DC1972614626
  2. Zein Al-Atrache, DO, PHDWashington, DC1023576691
  3. Matthew Ammerman, MDWashington, DC1871764258
  4. Rocco Armonda, MDWashington, DC1750371449
  5. Edward Aulisi, MDWashington, DC1457328155
  6. Derek Bruce, MDWashington, DC1467535815
  7. Anthony Caputy, MDWashington, DC1457328783
  8. Douglas Chung, MDWashington, DC1861072191
  9. Vinay Deshmukh, MDWashington, DC1144228933
  10. Ehsan Dowlati, M.D.Washington, DC1912360173

Common questions

What is Joshua Michael Ammerman, M.D.'s NPI number?

Joshua Michael Ammerman, M.D.'s National Provider Identifier (NPI) is 1043361124, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Michael Ammerman, M.D. located?

The NPPES record lists a practice address at 3301 New Mexico Ave NW, Washington, DC, 20016. Phone: (202) 966-6300. Providers update this record themselves, so call before visiting.

How can I verify Joshua Michael Ammerman, M.D.'s license?

NPPES lists District of Columbia license number MD034829, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joshua Michael Ammerman, M.D. prescribe under Medicare Part D?

In 2024, Joshua Michael Ammerman, M.D. had 242 Medicare Part D claims for 72 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.

What is Joshua Michael Ammerman, M.D.'s MIPS final score?

The 2023 MIPS final score is 20.8 of 100. 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.