NPPES file of Aug 9, 2026

James E. Mark, M.D.

Gynecologic Oncology Physician · San Antonio, TX

James E. Mark, M.D. is a gynecologic oncology physician with a practice address in San Antonio, Texas, and NPI 1841206885, issued on Jul 31, 2006. Check the license (Texas H1142, as entered in NPPES) on the Texas 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
1841206885
Name
James E. Mark
Credential
M.D.
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License number
H1142 TX
Self-reported in NPPES; status is on the state search
Practice location
4383 Medical Dr, San Antonio, TX 78229
Phone
(210) 593-5700
Enumerated
Jul 31, 2006
Record last updated
Jul 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(210) 593-5992
Medicaid ID
102891203 TX
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 4383 Medical Dr

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

  1. Divya Asti, M.B.B.SHematology & Oncology Physician1821475138
  2. Muralidhar Beeram, M.D.Medical Oncology Physician1265426282
  3. Megan Brito, FNP-BCNurse Practitioner1700508504
  4. Neil ChevliRadiation Oncology Physician1376048975
  5. Sara Conde, MDMedical Oncology Physician1093809428
  6. Jeanne Contreras, FNPFamily Nurse Practitioner1467752212

Verify James E. Mark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license H1142
    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 Texas license search

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53% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

91 Medicare Part D claims for 19 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D.

  1. James Mark91
  2. Specialty average195

Most prescribed

  1. Tamoxifen Citrate19 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.

Industry payments in 2024: $380.34

17 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Mark$380.34
  2. Specialty average$6,387.20

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

James E. Mark among 149 gynecologic oncology physician records in Texas

James E. Mark, M.D. is one of 149 gynecologic oncology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 52% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileNo · 80% of these records are
  • Record last updated2013 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in Texas

There are 149 gynecologic oncology physician records in Texas.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Katrin Eurich, MDSan Antonio, TX 782291578925475
  2. Kevin Hall, MDSan Antonio, TX 782291881701944
  3. Kelly Lamiman, MDSan Antonio, TX 782291437714201
  4. Yasmin Lyons, D.O.San Antonio, TX 782291851684252
  5. Jaron Mark, M.D.San Antonio, TX 782291073888319
  6. Fred Massey, M.D.San Antonio, TX 782291861408866
  7. Georgia McCann, MDSan Antonio, TX 782291548325582
  8. Antonio Santillan-Gomez, M.D.San Antonio, TX 782291013055813

Common questions

What is James E. Mark, M.D.'s NPI number?

James E. Mark, M.D.'s National Provider Identifier (NPI) is 1841206885, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James E. Mark, M.D. located?

The NPPES record lists a practice address at 4383 Medical Dr, San Antonio, TX, 78229. Phone: (210) 593-5700. Providers update this record themselves, so call before visiting.

How can I verify James E. Mark, M.D.'s license?

NPPES lists Texas license number H1142, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James E. Mark, M.D. prescribe under Medicare Part D?

In 2024, James E. Mark, M.D. had 91 Medicare Part D claims for 19 beneficiaries; the average among gynecologic oncology physician prescribers was 195. 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.