Hatty L. Tsai, M.D.
Internal Medicine Physician · Hartford, CT
Hatty L. Tsai, M.D. is an internal medicine physician with a practice address in Hartford, Connecticut, and NPI 1518011683, issued on Jan 23, 2007. Check the license on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Hatty L. Tsai
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 56251 MA
Self-reported in NPPES; status is on the state search - Practice location
- 185 Asylum St, Hartford, CT 06103
- Phone
- (860) 308-5367
- Enumerated
- Jan 23, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 185 Asylum St
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Verify Hatty L. Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Hatty L. Tsai among 2,623 internal medicine physician records in Connecticut
Hatty L. Tsai, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 61% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
169 internal medicine physician records list a practice address in Hartford
They are 169 of the 6,317 NPPES records with a practice address in Hartford, and 2,623 internal medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,623 in Connecticut → Every provider in Hartford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alister Campbell, M.D.Hartford, CT 061031710389689
- Steven Cooper, M.D.Hartford, CT 061031124143938
- Robert Koorse, M.D.Hartford, CT 061031780775080
- John Paul Aparece, M.D.Hartford, CT 061021184311631
- Navin Bhatt, MDHartford, CT 061021053045740
- Shivani GuptaHartford, CT 061021740977719
- Edouard Paul Marseille MathieuHartford, CT 061021790417129
- Shristi NepalHartford, CT 061021215665310
Common questions
What is Hatty L. Tsai, M.D.'s NPI number?
Hatty L. Tsai, M.D.'s National Provider Identifier (NPI) is 1518011683, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Hatty L. Tsai, M.D. located?
The NPPES record lists a practice address at 185 Asylum St, Hartford, CT, 06103. Phone: (860) 308-5367. Providers update this record themselves, so call before visiting.
How can I verify Hatty L. Tsai, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.