NPPES file of Aug 9, 2026

Robert Steven Marks, M.D.

Pain Medicine (Anesthesiology) Physician · Austin, TX

Robert Steven Marks, M.D. is a pain medicine (anesthesiology) physician with a practice address in Austin, Texas, and NPI 1447450796, issued on Jul 24, 2007. Check the license (Texas N8949, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447450796
Name
Robert Steven Marks
Credential
M.D.
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
N8949 TX
Self-reported in NPPES; status is on the state search
Practice location
12176 N Mopac Expy Ste D, Austin, TX 78758
Phone
(512) 981-7246
Enumerated
Jul 24, 2007
Record last updated
Apr 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111011000432); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2006
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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Also registered at 12176 N Mopac Expy Ste D

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

  1. John Gburek, M.D.Pain Medicine (Anesthesiology) Physician1689024291
  2. Mercedes Gonzales, DNP, APRN, FNP-BCFamily Nurse Practitioner1831998970
  3. Olivia Hubbard, APRN-CNPFamily Nurse Practitioner1982282646
  4. Sauman Rafii, M.D.Pain Medicine (Anesthesiology) Physician1811128887

Verify Robert Steven Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N8949
    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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4% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

1,672 Medicare Part D claims for 385 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 1,237 claims were for opioids.

  1. Robert Marks1,672
  2. Specialty average1,750

Most prescribed

  1. Hydrocodone-Acetaminophen549 claims
  2. Oxycodone Hcl166 claims
  3. Oxycodone-Acetaminophen124 claims
  4. Morphine Sulfate Er74 claims
  5. Celecoxib70 claims
  6. Duloxetine Hcl67 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): 47.4 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 score94.8
  2. Costnot scored (reweighted)
  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: $6,270.43

105 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Marks$6,270.43
  2. Specialty average$3,225.41

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

Bills Medicare through one group practice

  1. Robert Marks MD PLLCAustin, TX

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

Robert Steven Marks among 382 pain medicine (anesthesiology) physician records in Texas

Robert Steven Marks, M.D. is one of 382 pain medicine (anesthesiology) physician records with a practice address in Texas. 85% 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 41% of them.

  • NPI issued2007 · 41% of these records are older, 48% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2006 · median 2007 among the 284 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in Texas

There are 382 pain medicine (anesthesiology) physician records in Texas.

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. John Gburek, M.D.Austin, TX 787581689024291
  2. Sauman Rafii, M.D.Austin, TX 787581811128887
  3. Raimy Amasha, MDAustin, TX 787571760643498
  4. Neal Blauzvern, D.O.Austin, TX 787571609873603
  5. Iden Cowan, M.D.Austin, TX 787571700029832
  6. Raj Patel, M.D.Austin, TX 787571609221787
  7. Sandford Schocket, M.D.Austin, TX 787571851381818
  8. Julian Haro, M.D.Austin, TX 787511992708820

Common questions

What is Robert Steven Marks, M.D.'s NPI number?

Robert Steven Marks, M.D.'s National Provider Identifier (NPI) is 1447450796, issued on Jul 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert Steven Marks, M.D. located?

The NPPES record lists a practice address at 12176 N Mopac Expy Ste D, Austin, TX, 78758. Phone: (512) 981-7246. Providers update this record themselves, so call before visiting.

How can I verify Robert Steven Marks, M.D.'s license?

NPPES lists Texas license number N8949, 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 Robert Steven Marks, M.D. prescribe under Medicare Part D?

In 2024, Robert Steven Marks, M.D. had 1,672 Medicare Part D claims for 385 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.

What is Robert Steven Marks, M.D.'s MIPS final score?

The 2023 MIPS final score is 47.4 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.