2026 NPPES data Obstetrics & Gynecology Physician NPI 1245529833 MD
Verify on CMS →

Margaret Tanzy, MD

Obstetrics & Gynecology Physician in Orlando, Florida.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,326 in Obstetrics & Gynecology 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.

What the federal data shows

Margaret Tanzy, MD is an Obstetrics & Gynecology Physician in Orlando, Florida, listed in the federal CMS National Provider Identifier registry.

#37
Obstetrics & Gynecology Physician rank among Florida specialties

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.

CMS NPPES provider registry desk

NPI 1245529833 · Obstetrics & Gynecology Physician

NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1245529833
  • ENUM-MID 2011
  • TAX-MID 44K Obstetrics &
  • RX-NONE No Part D
  • BOOK-LIGHT 2,515 in Florida
  • PHOTO-ENUM Nathan Petersen · 2011
Board-eligible specialty (heuristic, not verified)

Margaret Tanzy, MD 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 Tanzy, MD?

Quality data not reported

NPI registry status

Active

Issued 04/04/2011

NPI 1245529833

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,326 US NPIs in this specialty

Specialty distribution in Florida

How Obstetrics & Gynecology Physician compares to other specialties among Florida providers

Florida providers
Behavior Technician16.1%Mental Health Counselor4.8%Family Nurse Practitioner4.5%Pharmacist4.2%Student in an Organized Heal…3.8%Physical Therapist3.1%Obstetrics & Gynecology Phys…0.6%
Largest specialties in Florida (% of in-state 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 Obstetrics & Gynecology 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).

Practice Address

601 E ROLLINS ST
Orlando, FL 32803

Provider Details

NPI 1245529833
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 04/04/2011

License & disciplinary context - Florida FLDOH 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 ~75K Florida medical licensees in 2023 - they are NOT specific to Margaret Tanzy, MD. To verify Margaret Tanzy, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Obstetrics & Gynecology Physician Overview

How Margaret Tanzy, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,326
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Tanzy, both outside Florida so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2011)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Obstetrics & Gynecology Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Tanzy.

One of 2,515 Obstetrics & Gynecology Physician providers enrolled in Florida, 5 are shown here.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Margaret Tanzy, MD's specialty?
Margaret Tanzy, MD specializes in Obstetrics & Gynecology Physician and practices in Orlando, Florida. Credentials: MD.
Where is Margaret Tanzy, MD located?
Margaret Tanzy, MD is located at 601 E ROLLINS ST, Orlando, FL, 32803. Phone: (407) 975-0406.
What is Margaret Tanzy, MD's NPI number?
Margaret Tanzy, MD's National Provider Identifier (NPI) is 1245529833, issued on 04/04/2011.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,326 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
Does Margaret Tanzy, MD accept Medicare?
Margaret Tanzy, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Margaret Tanzy, MD's credentials?
Margaret Tanzy, MD's NPI is 1245529833 with credentials MD. 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.
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.