Tassy N. Hayden, M.D.
Family Medicine Physician · Saint Louis, MO
Tassy N. Hayden, M.D. is a family medicine physician with a practice address in Saint Louis, Missouri, and NPI 1871889303, issued on Jun 23, 2011. Check the license (Missouri 2014021718, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Tassy N. Hayden
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 2014021718 MO
248385 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2340 Hampton Ave, Saint Louis, MO 63139
- Phone
- (314) 647-2200
- Enumerated
- Jun 23, 2011
- Record last updated
- May 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (314) 647-4172
- Medicaid ID
- 1871889303 MO
- Medicare enrollment
- Enrolled (PECOS I20250501001236); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 2340 Hampton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Morgan Blair, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1417685447
- Dainielle Fox, PHARM.D.Pharmacist1720616816
- Julia Garza, MDFamily Medicine Physician1235796616
- Katherine GoudeyCase Manager/Care Coordinator1881176378
- Bohan Li, PHARM.D.Pharmacist1548601180
- Ryan LillyPharmacist1356705917
Verify Tassy N. Hayden 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 2014021718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
138 Medicare Part D claims for 70 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Aripiprazole13 claims
- Atorvastatin Calcium13 claims
- Escitalopram Oxalate13 claims
- Metformin Hcl13 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 practice group's MIPS final score for 2023 (Medicare payment program): 54.7 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).
Bills Medicare through one group practice
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tassy N. Hayden among 2,991 family medicine physician records in Missouri
Tassy N. Hayden, M.D. is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 62% of them.
- NPI issued2011 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2006 among the 1,778 with a school on file
- Record last updated2018 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Missouri
There are 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Saint Louis → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Julia Garza, MDSaint Louis, MO 631391235796616
- Lyndon Hohenkirk, MDSaint Louis, MO 631391841243565
- Lisa Leonhart, M.D.Saint Louis, MO 631391881086627
- Ann McLaren, MDSaint Louis, MO 631391346293297
- Payal Patel, MDSaint Louis, MO 631391659389930
- Michael Railey, MDSaint Louis, MO 631391023061926
- Patricia Blair, M.D.Saint Louis, MO 631411992799225
- Damon Broyles, M.D.Saint Louis, MO 631411407856396
Common questions
What is Tassy N. Hayden, M.D.'s NPI number?
Tassy N. Hayden, M.D.'s National Provider Identifier (NPI) is 1871889303, issued on Jun 23, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Tassy N. Hayden, M.D. located?
The NPPES record lists a practice address at 2340 Hampton Ave, Saint Louis, MO, 63139. Phone: (314) 647-2200. Providers update this record themselves, so call before visiting.
How can I verify Tassy N. Hayden, M.D.'s license?
NPPES lists Missouri license number 2014021718, 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 Tassy N. Hayden, M.D. prescribe under Medicare Part D?
In 2024, Tassy N. Hayden, M.D. had 138 Medicare Part D claims for 70 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Tassy N. Hayden, M.D.'s MIPS final score?
The 2023 MIPS final score is 54.7 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.