Marc P. Simpao, MD
Internal Medicine Physician · Austin, TX
Marc P. Simpao, MD is an internal medicine physician with a practice address in Austin, Texas, and NPI 1427244946, issued on Sep 18, 2007. Check the license (Texas M7632, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marc P. Simpao
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- M7632 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1301 W 38TH St, Austin, TX 78705
- Phone
- (512) 324-1864
- Enumerated
- Sep 18, 2007
- Record last updated
- Dec 20, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (512) 419-9016
- Medicaid IDs
- 195158404 TX
195158401 TX
195158402 TX
195158403 TX - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1301 W 38TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marc P. Simpao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M7632Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 72.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Marc P. Simpao among 9,175 internal medicine physician records in Texas
Marc P. Simpao, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% 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, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2016 · 49% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Austin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anthony Aventa, MDAustin, TX 787051801875034
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- Nancy Foster, MDAustin, TX 787051588664957
- Robert Groves, MDAustin, TX 787051124007356
- Manjusha Gupte, MDAustin, TX 787051851387500
- Samson Jesudass, M.D.Austin, TX 787051619911385
- Jonathan Klocek, MDAustin, TX 787051265412910
- Kenneth Kroll, MDAustin, TX 787051831179589
Common questions
What is Marc P. Simpao, MD's NPI number?
Marc P. Simpao, MD's National Provider Identifier (NPI) is 1427244946, issued on Sep 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marc P. Simpao, MD located?
The NPPES record lists a practice address at 1301 W 38TH St, Austin, TX, 78705. Phone: (512) 324-1864. Providers update this record themselves, so call before visiting.
How can I verify Marc P. Simpao, MD's license?
NPPES lists Texas license number M7632, 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.
What is Marc P. Simpao, MD's MIPS final score?
The 2023 MIPS final score is 72.5 of 100, reported for the practice group. 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.