Theresa Maria Pereguda, M.D.
Internal Medicine Physician · New York, NY
Theresa Maria Pereguda, M.D. is an internal medicine physician with a practice address in New York, New York, and NPI 1023309408, issued on Apr 20, 2011. Check the license (New York 273864-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Theresa Maria Pereguda
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 273864-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 423 E 23RD St, New York, NY 10010
- Phone
- (212) 686-7500
- Enumerated
- Apr 20, 2011
- Record last updated
- Nov 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 423 E 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theresa Maria Pereguda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 273864-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Theresa Maria Pereguda among 12,067 internal medicine physician records in New York
Theresa Maria Pereguda, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 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 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2016 · 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
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Common questions
What is Theresa Maria Pereguda, M.D.'s NPI number?
Theresa Maria Pereguda, M.D.'s National Provider Identifier (NPI) is 1023309408, issued on Apr 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Maria Pereguda, M.D. located?
The NPPES record lists a practice address at 423 E 23RD St, New York, NY, 10010. Phone: (212) 686-7500. Providers update this record themselves, so call before visiting.
How can I verify Theresa Maria Pereguda, M.D.'s license?
NPPES lists New York license number 273864-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Theresa Maria Pereguda, M.D. prescribe under Medicare Part D?
In 2024, Theresa Maria Pereguda, M.D. had 14 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.