NPPES file of Aug 9, 2026

Margaret J. Nachtigall, M.D.

Reproductive Endocrinology Physician · New York, NY

Margaret J. Nachtigall, M.D. is a reproductive endocrinology physician with a practice address in New York, New York, and NPI 1023156627, issued on Feb 3, 2007. Check the license (New York 181181, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1023156627
Name
Margaret J. Nachtigall
Credential
M.D.
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License number
181181 NY
Self-reported in NPPES; status is on the state search
Practice location
251 E 33RD St, New York, NY 10016
Phone
(212) 683-0519
Enumerated
Feb 3, 2007
Record last updated
Jan 4, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120309000040); may accept Medicare assignment
Medical or professional school
New York University School Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 251 E 33RD St

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

  1. Lana Boter, MD, PPLCObstetrics & Gynecology Physician1184683823
  2. Ilona Brandeis, MD, MPHGynecology Physician1972696953
  3. Brian Harlin, MDColon & Rectal Surgery Physician1609969500
  4. Joseph Hochman, M.D.,Reproductive Endocrinology Physician1477550085
  5. Yevgeniya Kaykova, M.D.Infectious Disease Physician1376634915
  6. Meryl Mark, MDGynecology Physician1538246178

Verify Margaret J. Nachtigall in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 181181
    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 New York license search

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9.0 times the Medicare Part D claims of the average reproductive endocrinology physician in 2024

738 Medicare Part D claims for 123 beneficiaries, against an average of 82 among the 302 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Margaret Nachtigall738
  2. Specialty average82

Most prescribed

  1. Estradiol151 claims
  2. Estradiol (Twice Weekly)56 claims
  3. Duavee46 claims
  4. Yuvafem46 claims
  5. Progesterone34 claims
  6. Levothyroxine Sodium33 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.

Industry payments in 2024: $423.09

22 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 1,066 providers of this specialty with any payment received $1,086.52 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margaret Nachtigall$423.09
  2. Specialty average$1,086.52

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Margaret J. Nachtigall among 206 reproductive endocrinology physician records in New York

Margaret J. Nachtigall, M.D. is one of 206 reproductive endocrinology physician records with a practice address in New York. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 39% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated1988 · median 1990 among the 27 with a school on file
  • Record last updated2012 · 56% 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 New York 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 New York

There are 206 reproductive endocrinology physician records in New York.

The 8 reproductive endocrinology physician records with the nearest ZIP codes

  1. Joel Batzofin, M.D.New York, NY 100161518978253
  2. Hyacinth Browne, MDNew York, NY 100161316009798
  3. Cary Dicken, M.D.New York, NY 100161871778951
  4. Beth Hartog, M.D.New York, NY 100161053356279
  5. Joseph Hochman, M.D.,New York, NY 100161477550085
  6. Jennifer Kulp, M.D.New York, NY 100161952442485
  7. Lila Nachtigall, M.D.New York, NY 100161750443610
  8. Nicole Noyes, MDNew York, NY 100161184664336

Common questions

What is Margaret J. Nachtigall, M.D.'s NPI number?

Margaret J. Nachtigall, M.D.'s National Provider Identifier (NPI) is 1023156627, issued on Feb 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Margaret J. Nachtigall, M.D. located?

The NPPES record lists a practice address at 251 E 33RD St, New York, NY, 10016. Phone: (212) 683-0519. Providers update this record themselves, so call before visiting.

How can I verify Margaret J. Nachtigall, M.D.'s license?

NPPES lists New York license number 181181, 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 Margaret J. Nachtigall, M.D. prescribe under Medicare Part D?

In 2024, Margaret J. Nachtigall, M.D. had 738 Medicare Part D claims for 123 beneficiaries; 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.