NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1316993678 MD
Verify on CMS → Thomas Ambro, MD
Obstetrics & Gynecology Physician in Pleasant Prairie, Wisconsin.
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.
Prescribing volume
47
Medicare Part D claims · 18 beneficiaries · Obstetrics & Gynecology Physician avg: 179
MIPS score
79.6/100
▼ 3 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Thomas Ambro, MD reported a CMS MIPS final score of 79.6/100 - below the 83.1 national average - and filed 47 Medicare Part D claims in 2023.
- 79.6/100
- MIPS score · -3 vs avg
- 47
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Thomas Ambro, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
80 30th percentile higher than 30% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Thomas Ambro, MD sits
This provider among obstetrics & gynecology physician peers
Across the 7,413 obstetrics & gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Thomas Ambro, MD writes more Part D claims than 24% of them and scores higher on MIPS quality than 26% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one obstetrics & gynecology physician peer from a representative sample of 60; the gold marker is Thomas Ambro, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Thomas Ambro, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Thomas Ambro, MD?
Near national averagePrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
47 74% vs specialty avg
MIPS final score
79.6/100 3.5 pts vs avg
Specialty distribution in Wisconsin
How Obstetrics & Gynecology Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Thomas Ambro, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average
- MIPS Final Score
- 79.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics & Gynecology Physician) - 79.6/100 vs national avg 83.1
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).
Thomas Ambro, MD appears in the CMS NPPES registry as an Obstetrics & Gynecology Physician provider holding MD credentials at 9555 76TH ST STE 4105, Pleasant Prairie, WI, 53158, with a listed phone of (262) 577-8080. NPI 1316993678 was issued on 05/26/2006.
Medicare Part D records for calendar year 2023 show 47 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $10K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.6/100 for the 2023 performance year (Quality 70.9, Cost 61.2), compared with the national average of 83.1.
Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,326 enrolled providers across 56 states and an average of 179 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 | 1316993678 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/26/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.613
Final Score
Avg: 83.1
70.8884
Quality
61.1551
Cost
100
Promoting Interoperability
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
47
Total Claims
$10K
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 94
- Total Day Supply
- 2,436
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 65.8 years
- Avg HCC Risk Score
- 0.82
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Estradiol | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics & Gynecology Physician Overview
How Thomas Ambro, 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
Thomas Ambro, MD's 47 claims are below the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Ambro.
Dr. Tahmina Aafreen
M.D.
Watertown, WI
Dr. Samir Abadeer
MD
Wausau, WI
Dr. Leslie Abitz
MD
Sheboygan, WI
Dr. Bruce Abrams
MD
Rhinelander, WI
Dr. Ernesto Acosta
MD
Appleton, WI
Compare Obstetrics & Gynecology 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology 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 Thomas Ambro, MD's specialty? ▼
Thomas Ambro, MD specializes in Obstetrics & Gynecology Physician and practices in Pleasant Prairie, Wisconsin. Credentials: MD.
How much does Thomas Ambro, MD prescribe under Medicare Part D? ▼
In 2023, Thomas Ambro, MD wrote 47 Medicare Part D claims totaling $10K in drug costs for 18 beneficiaries.
What is Thomas Ambro, MD's Medicare quality score? ▼
Thomas Ambro, MD has a CMS MIPS Final Score of 79.6/100 (Quality: 70.9, Cost: 61.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Thomas Ambro, MD located? ▼
Thomas Ambro, MD is located at 9555 76TH ST STE 4105, Pleasant Prairie, WI, 53158. Phone: (262) 577-8080.
What is Thomas Ambro, MD's NPI number? ▼
Thomas Ambro, MD's National Provider Identifier (NPI) is 1316993678, issued on 05/26/2006.
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.
What drugs does Thomas Ambro, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Thomas Ambro, MD's most frequently prescribed drugs include Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Ambro, MD accept Medicare? ▼
Thomas Ambro, MD appears in CMS Medicare data with 47 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Ambro, MD's credentials? ▼
Thomas Ambro, MD's NPI is 1316993678 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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Compiled from official public sources by the PlainDoctor editorial team.
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.