NPI registry status
Active
2026 NPPES data Reproductive Endocrinology Physician NPI 1023156627 M.D.
Verify on CMS → Margaret Nachtigall, M.D.
Reproductive Endocrinology Physician in New York, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,421 in Reproductive Endocrinology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
692
Medicare Part D claims · 119 beneficiaries · Reproductive Endocrinology Physician avg: 104
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$423.09
22 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Margaret Nachtigall, M.D. filed 692 Medicare Part D claims in 2023 as a Reproductive Endocrinology Physician in New York, New York, prescribing 56% generic.
- 692
- Part D claims, 2023
- 56%
- generic prescribing
- $423.09
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Margaret Nachtigall, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
692 Top 31% higher than 69% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Margaret Nachtigall, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Margaret Nachtigall, M.D.?
Quality data not reportedPrimary specialty
Reproductive Endocrinology Physician
Medicare Part D claims
692 7× vs specialty avg
Specialty distribution in New York
How Reproductive Endocrinology Physician compares to other specialties among New York providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Reproductive Endocrinology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Margaret Nachtigall, M.D. appears in the CMS NPPES registry as a Reproductive Endocrinology Physician provider holding M.D. credentials at 251 E 33RD ST, New York, NY, 10016, with a listed phone of (212) 683-0519. NPI 1023156627 was issued on 02/03/2007.
Medicare Part D records for calendar year 2023 show 692 prescription claims written by this provider, covering 119 Medicare beneficiaries and totaling roughly $124K in drug spend, split 44% brand-name and 56% generic by claim count.
Reproductive Endocrinology Physician is a narrow specialty nationwide, with 1,421 enrolled providers across 48 states and an average of 104 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1023156627 |
|---|---|
| Specialty | Reproductive Endocrinology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 02/03/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Margaret Nachtigall, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$423
Largest payer
Novo Nordisk Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - New York NYSBPMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Margaret Nachtigall, M.D.. To verify Margaret Nachtigall, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Margaret Nachtigall, M.D. - brand share 44.0%
Reproductive Endocrinology Physician average
44% brand-name claims vs 56% generic, on 692 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
692
Total Claims
$124K
Total Drug Cost
119
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,134
- Total Day Supply
- 32,137
- Brand vs Generic
- 44% brand / 56% generic
- Brand Drug Cost
- $91K
- Generic Drug Cost
- $32K
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 0.76
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Margaret Nachtigall, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Estradiol
Estradiol
114 claims
- Estradiol (Twice W…
Estradiol (Twice Weekly)
77 claims
- Imvexxy 39
Imvexxy
39 claims
- Levothyroxine Sodium 27
Levothyroxine Sodium
27 claims
- Yuvafem 26
Yuvafem
26 claims
- Combipatch 20
Combipatch
20 claims
- Fluconazole 16
Fluconazole
16 claims
- Intrarosa 13
Intrarosa
13 claims
| Drug | Claims |
|---|---|
| Estradiol | 114 |
| Estradiol (Twice Weekly) Estradiol | 77 |
| Imvexxy Estradiol | 39 |
| Levothyroxine Sodium | 27 |
| Yuvafem Estradiol | 26 |
| Combipatch Estradiol/Norethindrone Acet | 20 |
| Fluconazole | 16 |
| Intrarosa Prasterone (Dhea) | 13 |
| Estradiol-Norethindrone Acetat Estradiol/Norethindrone Acet | 12 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Reproductive Endocrinology Physician Overview
How Margaret Nachtigall, M.D. fits within the Reproductive Endocrinology Physician landscape nationally.
1,421
Reproductive Endocrinology Physician Providers in US
48
States with Reproductive Endocrinology Physician
104
Avg Claims per Provider
Margaret Nachtigall, M.D.'s 692 claims are above the specialty average of 104.
Nearby Reproductive Endocrinology Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Nachtigall.
Dr. Fakhry Alexander
M.D.
South Richmond Hill, NY
Dr. Michael Alper
M.D.
Syracuse, NY
Dr. Snigdha Alur-Gupta
M.D.
Rochester, NY
Dr. Hussein Amin Salem
MD
Hartsdale, NY
Dr. Shawky Badawy
MD
Syracuse, NY
Compare Reproductive Endocrinology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New York medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Reproductive Endocrinology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Margaret Nachtigall, M.D.'s specialty? ▼
Margaret Nachtigall, M.D. specializes in Reproductive Endocrinology Physician and practices in New York, New York. Credentials: M.D..
How much does Margaret Nachtigall, M.D. prescribe under Medicare Part D? ▼
In 2023, Margaret Nachtigall, M.D. wrote 692 Medicare Part D claims totaling $124K in drug costs for 119 beneficiaries.
Where is Margaret Nachtigall, M.D. located? ▼
Margaret Nachtigall, M.D. is located at 251 E 33RD ST, New York, NY, 10016. Phone: (212) 683-0519.
What is Margaret Nachtigall, M.D.'s NPI number? ▼
Margaret Nachtigall, M.D.'s National Provider Identifier (NPI) is 1023156627, issued on 02/03/2007.
Does Margaret Nachtigall, M.D. prescribe more brand-name or generic drugs? ▼
Margaret Nachtigall, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $91K in brand drug costs.
How many Reproductive Endocrinology Physician providers are there in the US? ▼
There are 1,421 Reproductive Endocrinology Physician providers across 48 states in the US. The average Reproductive Endocrinology Physician provider writes 104 Medicare Part D claims per year.
What drugs does Margaret Nachtigall, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Margaret Nachtigall, M.D.'s most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Imvexxy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Margaret Nachtigall, M.D. accept Medicare? ▼
Margaret Nachtigall, M.D. appears in CMS Medicare data with 692 Part D claims and 119 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Margaret Nachtigall, M.D.'s credentials? ▼
Margaret Nachtigall, M.D.'s NPI is 1023156627 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.