NPPES file of Aug 9, 2026

David A. Marks, M.D.

Pulmonary Disease Physician · San Antonio, TX

David A. Marks, M.D. is a pulmonary disease physician with a practice address in San Antonio, Texas, and NPI 1821016023, issued on Jul 17, 2006. Check the license (Texas L6513, 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
1821016023
Name
David A. Marks
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
L6513 TX
Self-reported in NPPES; status is on the state search
Practice location
115 Gallery Cir, San Antonio, TX 78258
Phone
(210) 494-4220
Enumerated
Jul 17, 2006
Record last updated
May 14, 2026
Fax
(210) 494-4227
Medicare enrollment
Enrolled (PECOS I20080313000474); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest pulmonary disease physician records → All 967 in Texas → Look up another NPI →

Also registered at 115 Gallery Cir

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

  1. Carlos Orozco, P.T., D.P.TPhysical Therapist1598886350
  2. Michael Vaughn, M.D.PHD.Allergy & Immunology Physician1881687879

Verify David A. Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L6513    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

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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3.1 times the Medicare Part D claims of the average pulmonary disease physician in 2024

4,456 Medicare Part D claims for 707 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 77 claims were for opioids.

  1. David Marks4,456
  2. Specialty average1,425

Most prescribed

  1. Trelegy Ellipta338 claims
  2. Montelukast Sodium254 claims
  3. Albuterol Sulfate Hfa205 claims
  4. Prednisone156 claims
  5. Breztri Aerosphere142 claims
  6. Azithromycin134 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: $163,954.30

272 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Marks$163,954
  2. Specialty average$5,160

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. David A Marks MD PASan Antonio, TX
  2. Rise UP Rehab, LLCSan Antonio, TX

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

David A. Marks among 967 pulmonary disease physician records in Texas

David A. Marks, M.D. is one of 967 pulmonary disease physician records with a practice address in Texas. 88% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 52% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated2001 · median 2001 among the 773 with a school on file
  • Record last updated2026 · 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 207RP1001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Texas

There are 967 pulmonary disease physician records in Texas.

All 967 in Texas → Every provider in San Antonio → Pulmonary Disease Physician nationwide →

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Jennifer Brody, MDSan Antonio, TX 782581609862127
  2. Aldo Parodi, M.DSan Antonio, TX 782581407068505
  3. Natalia Soto Gomez, M.D.San Antonio, TX 782551508177403
  4. Cesar Artiles Feliz, M.D.San Antonio, TX 782511457580334
  5. Bradley Miller, M.D.San Antonio, TX 782511144499344
  6. Alan Siqueiros, M.D.San Antonio, TX 782511861637597
  7. Randall Bell, M.D.San Antonio, TX 782401780681403
  8. Charles Burch, MDSan Antonio, TX 782401831196559

Common questions

What is David A. Marks, M.D.'s NPI number?

David A. Marks, M.D.'s National Provider Identifier (NPI) is 1821016023, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David A. Marks, M.D. located?

The NPPES record lists a practice address at 115 Gallery Cir, San Antonio, TX, 78258. Phone: (210) 494-4220. Providers update this record themselves, so call before visiting.

How can I verify David A. Marks, M.D.'s license?

NPPES lists Texas license number L6513, 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 David A. Marks, M.D. prescribe under Medicare Part D?

In 2024, David A. Marks, M.D. had 4,456 Medicare Part D claims for 707 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.