Shawn Michael Gao, M.D.
Internal Medicine Physician · Saint Louis, MO
Shawn Michael Gao, M.D. is an internal medicine physician with a practice address in Saint Louis, Missouri, and NPI 1740424704, issued on Apr 21, 2009. Check the license (Missouri 2014027747, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Shawn Michael Gao
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2014027747 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3535 S Jefferson Ave, Saint Louis, MO 63118
- Phone
- (314) 776-7999
- Enumerated
- Apr 21, 2009
- Record last updated
- Jun 23, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (314) 772-2257
- Medicare enrollment
- Enrolled (PECOS I20140922002747); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 3535 S Jefferson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Akins, MSN RN BC AP MHCNSClinical Nurse Specialist1790767721
- Mudasir Asif, M.D.Psychiatry Physician1265797898
- Carol Blacksher, APRN BCNurse Practitioner1245249382
- Audrey Caramanna, NPNurse Practitioner1689738569
- Polly David, MDInfectious Disease Physician1649501834
- Dang Do, D.P.M.Foot Surgery Podiatrist1184829277
Verify Shawn Michael Gao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2014027747Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17.4 times the Medicare Part D claims of the average internal medicine physician in 2024
55,323 Medicare Part D claims for 1,213 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 1,033 claims were for opioids.
Most prescribed
- Atorvastatin Calcium3,531 claims
- Amlodipine Besylate2,434 claims
- Pantoprazole Sodium1,623 claims
- Gabapentin1,617 claims
- Levothyroxine Sodium1,584 claims
- Furosemide1,351 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): 76.7 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $538.79
14 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Clinical Medical Services LLCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shawn Michael Gao among 2,604 internal medicine physician records in Missouri
Shawn Michael Gao, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 50% of them.
- NPI issued2009 · 50% of these records are older, 48% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2009 · median 2006 among the 1,443 with a school on file
- Record last updated2015 · 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 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
941 internal medicine physician records list a practice address in Saint Louis
They are 941 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Louis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Saad Alkaade, M.D.Saint Louis, MO 631181033433594
- Chia-Yuan HsuSaint Louis, MO 631181154909828
- Jambunathan Mahadevan, MDSt Louis, MO 631181669588638
- Timothy Mahood, MDSaint Louis, MO 631181003987678
- Hinna Shahid, MDSt Louis, MO 631181467987651
- Mi Vo, MDSaint Louis, MO 631181851404867
- Akriti Acharya, M.D.St Louis, MO 631171326722455
- Sana Afzal, MDSaint Louis, MO 631171083579213
Common questions
What is Shawn Michael Gao, M.D.'s NPI number?
Shawn Michael Gao, M.D.'s National Provider Identifier (NPI) is 1740424704, issued on Apr 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Shawn Michael Gao, M.D. located?
The NPPES record lists a practice address at 3535 S Jefferson Ave, Saint Louis, MO, 63118. Phone: (314) 776-7999. Providers update this record themselves, so call before visiting.
How can I verify Shawn Michael Gao, M.D.'s license?
NPPES lists Missouri license number 2014027747, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Shawn Michael Gao, M.D. prescribe under Medicare Part D?
In 2024, Shawn Michael Gao, M.D. had 55,323 Medicare Part D claims for 1,213 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Shawn Michael Gao, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 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.