NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1134418247 M.D.
Verify on CMS → Sarah Bienenfeld, M.D.
Obstetrics & Gynecology Physician in Bellevue, Washington.
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
24
Medicare Part D claims · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
46%
generic claims · 54% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.2/100
▼ 4 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sarah Bienenfeld, M.D. reported a CMS MIPS final score of 79.2/100 - below the 83.1 national average - and filed 24 Medicare Part D claims in 2023.
- 79.2/100
- MIPS score · -4 vs avg
- 24
- Part D claims, 2023
- 46%
- generic prescribing
- 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.
Sarah Bienenfeld, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 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 Sarah Bienenfeld, M.D. 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, Sarah Bienenfeld, M.D. writes more Part D claims than 9% of them and scores higher on MIPS quality than 24% - 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 Sarah Bienenfeld, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sarah Bienenfeld, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Sarah Bienenfeld, M.D.?
Near national averagePrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
24 87% vs specialty avg
MIPS final score
79.2/100 3.9 pts vs avg
Specialty distribution in Washington
How Obstetrics & Gynecology Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Sarah Bienenfeld, M.D.'s 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average
- MIPS Final Score
- 79.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics & Gynecology Physician) - 79.2/100 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).
Sarah Bienenfeld, M.D. appears in the CMS NPPES registry as an Obstetrics & Gynecology Physician provider holding M.D. credentials at 1231 116TH AVE NE STE 950, Bellevue, WA, 98004, with a listed phone of (425) 454-6674. NPI 1134418247 was issued on 03/30/2011.
Medicare Part D records for calendar year 2023 show 24 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $3K in drug spend, split 54% brand-name and 46% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.2/100 for the 2023 performance year (Quality 74.5, Cost 56), 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 | 1134418247 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 03/30/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.168
Final Score
Avg: 83.1
74.5323
Quality
56.0276
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Sarah Bienenfeld, M.D. 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.
Overlake Medical Clinics LLC
Bellevue, WA
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 - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Sarah Bienenfeld, M.D.. To verify Sarah Bienenfeld, M.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Sarah Bienenfeld, M.D. - brand share 54.0%
Obstetrics & Gynecology Physician average
54% brand-name claims vs 46% generic, on 24 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.
24
Total Claims
$3K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 52
- Total Day Supply
- 1,509
- Brand vs Generic
- 54% brand / 46% generic
- Brand Drug Cost
- $916
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 0.44
Obstetrics & Gynecology Physician Overview
How Sarah Bienenfeld, M.D. 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
Sarah Bienenfeld, M.D.'s 24 claims are below the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Bienenfeld.
Dr. Monica Abbi
MD
Tacoma, WA
Dr. Hasan Abdessamad
MD
Burien, WA
Dr. Daniela Abreu
DO
Mount Vernon, WA
Kristina Adams Waldorf
Seattle, WA
Dr. Christen Adkins
MD
Seattle, WA
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 Washington 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 Sarah Bienenfeld, M.D.'s specialty? ▼
Sarah Bienenfeld, M.D. specializes in Obstetrics & Gynecology Physician and practices in Bellevue, Washington. Credentials: M.D..
How much does Sarah Bienenfeld, M.D. prescribe under Medicare Part D? ▼
In 2023, Sarah Bienenfeld, M.D. wrote 24 Medicare Part D claims totaling $3K in drug costs for N/A beneficiaries.
What is Sarah Bienenfeld, M.D.'s Medicare quality score? ▼
Sarah Bienenfeld, M.D. has a CMS MIPS Final Score of 79.2/100 (Quality: 74.5, Cost: 56). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sarah Bienenfeld, M.D. located? ▼
Sarah Bienenfeld, M.D. is located at 1231 116TH AVE NE STE 950, Bellevue, WA, 98004. Phone: (425) 454-6674.
What is Sarah Bienenfeld, M.D.'s NPI number? ▼
Sarah Bienenfeld, M.D.'s National Provider Identifier (NPI) is 1134418247, issued on 03/30/2011.
Does Sarah Bienenfeld, M.D. prescribe more brand-name or generic drugs? ▼
Sarah Bienenfeld, M.D.'s prescribing is 54% brand-name and 46% generic drugs by claim count, with $916 in brand drug costs.
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 Sarah Bienenfeld, M.D. accept Medicare? ▼
Sarah Bienenfeld, M.D. appears in CMS Medicare data with 24 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Bienenfeld, M.D.'s credentials? ▼
Sarah Bienenfeld, M.D.'s NPI is 1134418247 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.
- 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.