David B. Seifer, M.D.
Reproductive Endocrinology Physician · Westport, CT
David B. Seifer, M.D. is a reproductive endocrinology physician with a practice address in Westport, Connecticut, and NPI 1336252659, issued on Aug 17, 2006. Check the license (Connecticut 29737, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- David B. Seifer
- Credential
- M.D.
- Primary taxonomy
- Reproductive Endocrinology Physician 207VE0102X
- License numbers
- 29737 CT
17734 NH
169526 NY
MD169445 OR
Self-reported in NPPES; status is on the state search - Practice location
- 125A Kings Highway N, Westport, CT 06880
- Phone
- (203) 341-8899
- Enumerated
- Aug 17, 2006
- Record last updated
- Jul 21, 2022
- Entity
- Type 1 · individual
8 nearest reproductive endocrinology physician records → All 47 in Connecticut → Look up another NPI →
Verify David B. Seifer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 29737Check 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): 73.6 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).
David B. Seifer among 47 reproductive endocrinology physician records in Connecticut
David B. Seifer, M.D. is one of 47 reproductive endocrinology physician records with a practice address in Connecticut. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 38% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 13% of these records are
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VE0102X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Reproductive Endocrinology Physician providers in Connecticut
There are 47 reproductive endocrinology physician records in Connecticut.
All 47 in Connecticut → Every provider in Westport → Reproductive Endocrinology Physician nationwide →
The 8 reproductive endocrinology physician records with the nearest ZIP codes
- Joao De Pinho, MD, FACOGWestport, CT 068801205129905
- Bernard Lieberman, M.D.Westport, CT 068801902060569
- Marco Mouanness, MDWestport, CT 068801831785591
- Frances Ginsburg, MDStamford, CT 069021215946900
- Gad Lavy, M.D.Stamford, CT 069051760451090
- Joshua Hurwitz, MDNorwalk, CT 068511457420176
- Alexander Kucherov, M.D.Norwalk, CT 068511104106244
- Laura Meyer, M.D.Norwalk, CT 068511962656389
Common questions
What is David B. Seifer, M.D.'s NPI number?
David B. Seifer, M.D.'s National Provider Identifier (NPI) is 1336252659, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David B. Seifer, M.D. located?
The NPPES record lists a practice address at 125A Kings Highway N, Westport, CT, 06880. Phone: (203) 341-8899. Providers update this record themselves, so call before visiting.
How can I verify David B. Seifer, M.D.'s license?
NPPES lists Connecticut license number 29737, as entered by the provider. 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.
What is David B. Seifer, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.