NPPES file of Aug 9, 2026

James Joseph Ziomek, MD

Internal Medicine Physician · Los Alamos, NM

James Joseph Ziomek, MD is an internal medicine physician with a practice address in Los Alamos, New Mexico, and NPI 1487652780, issued on Jul 11, 2005. Check the license (New Mexico 95166, as entered in NPPES) on the New Mexico Medical Board; 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
1487652780
Name
James Joseph Ziomek
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
95166 NM
Self-reported in NPPES; status is on the state search
Practice location
3917 West RD, Los Alamos, NM 87544
Phone
(505) 662-4351
Enumerated
Jul 11, 2005
Record last updated
Dec 31, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(505) 662-4351
Medicaid ID
30985 NM
Medicare enrollment
Enrolled (PECOS I20100210000693); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1991
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 3917 West RD

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

  1. Lynda Adrouche-Amrani, M.DNeonatal-Perinatal Medicine Physician1992964357
  2. Samarina Ahmad, M.D.Internal Medicine Physician1417910951
  3. Gretchen Anderson, RN, CS, MS(N),FNPFamily Nurse Practitioner1871563536
  4. Rodney Barker, MDSurgery Physician1023178530
  5. Kathryn Barnard, M.D.Internal Medicine Physician1366440141
  6. Galina Batygina, P.A.Physician Assistant1962525550

Verify James Joseph Ziomek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Mexico Medical Board
    Search for license 95166
    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 Mexico 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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21% more Medicare Part D claims than the average internal medicine physician in 2024

3,858 Medicare Part D claims for 160 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 213 claims were for opioids.

  1. James Ziomek3,858
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium244 claims
  2. Rosuvastatin Calcium178 claims
  3. Atorvastatin Calcium146 claims
  4. Amlodipine Besylate125 claims
  5. Losartan Potassium115 claims
  6. Metoprolol Succinate104 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Bills Medicare through one group practice

  1. Los Alamos Medical Care Clinic LtdLos Alamos, NM

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

James Joseph Ziomek among 770 internal medicine physician records in New Mexico

James Joseph Ziomek, MD is one of 770 internal medicine physician records with a practice address in New Mexico. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1991 · median 2009 among the 447 with a school on file
  • Record last updated2009 · 54% 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 New Mexico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 internal medicine physician records list a practice address in Los Alamos

They are 10 of the 324 NPPES records with a practice address in Los Alamos, and 770 internal medicine physician records in New Mexico.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Samarina Ahmad, M.D.Los Alamos, NM 875441417910951
  2. Kathryn Barnard, M.D.Los Alamos, NM 875441366440141
  3. Miguel Dozier, MDLos Alamos, NM 875441194817155
  4. Ann Ferris, M.D.Los Alamos, NM 875441861540437
  5. Laurence Goddard, MDLos Alamos, NM 875441093778425
  6. Gary Jacques, M.D.Los Alamos, NM 875441407962061
  7. Martha Kendall, M.D.Los Alamos, NM 875441326133810
  8. Keeley Power, M.D.Los Alamos, NM 875441164866331

Common questions

What is James Joseph Ziomek, MD's NPI number?

James Joseph Ziomek, MD's National Provider Identifier (NPI) is 1487652780, issued on Jul 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James Joseph Ziomek, MD located?

The NPPES record lists a practice address at 3917 West RD, Los Alamos, NM, 87544. Phone: (505) 662-4351. Providers update this record themselves, so call before visiting.

How can I verify James Joseph Ziomek, MD's license?

NPPES lists New Mexico license number 95166, as entered by the provider. Search the New Mexico Medical Board at https://www.nmmb.state.nm.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Joseph Ziomek, MD prescribe under Medicare Part D?

In 2024, James Joseph Ziomek, MD had 3,858 Medicare Part D claims for 160 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is James Joseph Ziomek, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.