NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1518962174 DO
Verify on CMS → Peter Vienne, DO
Obstetrics & Gynecology Physician in Morris, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 45,074 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
542
Medicare Part D claims · 98 beneficiaries · Obstetrics & Gynecology Physician avg: 188
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Peter Vienne, DO filed 542 Medicare Part D claims in 2024 as an Obstetrics & Gynecology Physician in Morris, Illinois, prescribing 91% generic.
- 542
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥65th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Peter Vienne, DO
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1518962174), first enumerated 06/20/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 542 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Peter Vienne, DO's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1518962174 · Obstetrics & Gynecology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1518962174
- ENUM-LEGACY 2005
- TAX-MID 45K Obstetrics &
- RX-LIGHT 542
- BOOK-LIGHT 1,983 in Illinois
- PHOTO-ENUM Angela Piquard · 2005
Peter Vienne, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
542 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Peter Vienne, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Peter Vienne, DO?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
542 188% vs specialty avg
Specialty distribution in Illinois
How Obstetrics & Gynecology Physician compares to other specialties among Illinois 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
Provider Details
| NPI | 1518962174 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 06/20/2005 |
Hospital and facility affiliations
Facilities where Peter Vienne, DO bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Dupage Medical Group Ltd
Tinley Park, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Peter Vienne, DO. To verify Peter Vienne, DO's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Peter Vienne, DO - brand share 9.0%
Obstetrics & Gynecology Physician average
9% brand-name claims vs 91% generic, on 542 2024 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 2024.
542
Total Claims
$12K
Total Drug Cost
98
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,482.4
- Total Day Supply
- 43,868
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 0.64
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Peter Vienne, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Levothyroxine Sodium
Levothyroxine Sodium
89 claims
- Atorvastatin Calcium
Atorvastatin Calcium
45 claims
- Metoprolol Succinate 31
Metoprolol Succinate
31 claims
- Alendronate Sodium 28
Alendronate Sodium
28 claims
- Clotrimazole-Betam… 19
Clotrimazole-Betamethasone
19 claims
- Estradiol 18
Estradiol
18 claims
- Escitalopram Oxalate 15
Escitalopram Oxalate
15 claims
- Oxybutynin Chlorid… 15
Oxybutynin Chloride Er
15 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 89 |
| Atorvastatin Calcium | 45 |
| Metoprolol Succinate | 31 |
| Alendronate Sodium | 28 |
| Clotrimazole-Betamethasone Clotrimazole/Betamethasone Dip | 19 |
| Estradiol | 18 |
| Escitalopram Oxalate | 15 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 15 |
| Potassium Chloride | 15 |
| Rosuvastatin Calcium | 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 Peter Vienne, DO fits within the Obstetrics & Gynecology Physician landscape nationally.
45,074
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
188
Avg Claims per Provider
Peter Vienne, DO's 542 claims are above the specialty average of 188.
Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Vienne, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Obstetrics & Gynecology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Vienne.
One of 1,983 Obstetrics & Gynecology Physician providers enrolled in Illinois, 5 are shown here.
Dr. Anum Abbasi
MD
Chicago, IL
Dr. Rana Abdul-Khalek
MD
Roscoe, IL
Dr. Idries Abdur-Rahman
M.D.
Ottawa, IL
Dr. Jamil Abdur-Rahman
M.D.
Gurnee, IL
Greta Abel
PA-C
Wheaton, IL
Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Peter Vienne, DO's specialty? ▼
Peter Vienne, DO specializes in Obstetrics & Gynecology Physician and practices in Morris, Illinois. Credentials: DO.
How much does Peter Vienne, DO prescribe under Medicare Part D? ▼
In 2024, Peter Vienne, DO wrote 542 Medicare Part D claims totaling $12K in drug costs for 98 beneficiaries.
Where is Peter Vienne, DO located? ▼
Peter Vienne, DO is located at 936 W US ROUTE 6, Morris, IL, 60450. Phone: (815) 942-0525.
What is Peter Vienne, DO's NPI number? ▼
Peter Vienne, DO's National Provider Identifier (NPI) is 1518962174, issued on 06/20/2005.
Does Peter Vienne, DO prescribe more brand-name or generic drugs? ▼
Peter Vienne, DO's prescribing is 9% brand-name and 91% generic drugs by claim count, with $2K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 45,074 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 188 Medicare Part D claims per year.
What drugs does Peter Vienne, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Peter Vienne, DO's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Peter Vienne, DO accept Medicare? ▼
Peter Vienne, DO appears in CMS Medicare data with 542 Part D claims and 98 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Vienne, DO's credentials? ▼
Peter Vienne, DO's NPI is 1518962174 with credentials DO. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.