NPPES file of Aug 9, 2026

John C. Nulsen, MD

Reproductive Endocrinology Physician · Farmington, CT

John C. Nulsen, MD is a reproductive endocrinology physician with a practice address in Farmington, Connecticut, and NPI 1477550036, issued on Jun 28, 2005. Check the license (Connecticut 028057, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477550036
Name
John C. Nulsen
Credential
MD
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License number
028057 CT
Self-reported in NPPES; status is on the state search
Practice location
2 Batterson Park RD, Farmington, CT 06032
Phone
(860) 679-7503
Enumerated
Jun 28, 2005
Record last updated
Nov 18, 2022
Medicaid ID
1280577 CT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2 Batterson Park RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maya Barsky, M.D.Reproductive Endocrinology Physician1659614543
  2. Claudio Benadiva, M.D.Reproductive Endocrinology Physician1003985805
  3. Glorimar Diaz, FNP-BCFamily Nurse Practitioner1679088017
  4. Andrea Diluigi, MDReproductive Endocrinology Physician1346305604
  5. Prachi Godiwala, M.D.Obstetrics & Gynecology Physician1417335415
  6. Daniel Grow, MDReproductive Endocrinology Physician1619063310

Verify John C. Nulsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 028057
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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85% fewer Medicare Part D claims than the average reproductive endocrinology physician in 2024

12 Medicare Part D claims, against an average of 82 among the 302 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Nulsen12
  2. Specialty average82

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.

John C. Nulsen among 47 reproductive endocrinology physician records in Connecticut

John C. Nulsen, MD 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% 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.

The 8 reproductive endocrinology physician records with the nearest ZIP codes

  1. Maya Barsky, M.D.Farmington, CT 060321659614543
  2. Claudio Benadiva, M.D.Farmington, CT 060321003985805
  3. Andrea Diluigi, MDFarmington, CT 060321346305604
  4. Daniel Grow, MDFarmington, CT 060321619063310
  5. Donald Maier, MDFarmington, CT 060321063418226
  6. Reeva Makhijani, MDFarmington, CT 060321053726638
  7. David Schmidt, MDFarmington, CT 060321194894956
  8. Kelly Lynch, MDFarmington, CT 060301790885804

Common questions

What is John C. Nulsen, MD's NPI number?

John C. Nulsen, MD's National Provider Identifier (NPI) is 1477550036, issued on Jun 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John C. Nulsen, MD located?

The NPPES record lists a practice address at 2 Batterson Park RD, Farmington, CT, 06032. Phone: (860) 679-7503. Providers update this record themselves, so call before visiting.

How can I verify John C. Nulsen, MD's license?

NPPES lists Connecticut license number 028057, 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.

How much does John C. Nulsen, MD prescribe under Medicare Part D?

In 2024, John C. Nulsen, MD had 12 Medicare Part D claims; the average among reproductive endocrinology physician prescribers was 82. 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.