NPI registry status
Active
2026 NPPES data Gynecologic Oncology Physician NPI 1982947149 D.O.
Verify on CMS → Deirdre Knobeloch, D.O.
Gynecologic Oncology Physician in Seattle, 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 1,364 in Gynecologic Oncology 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
112
Medicare Part D claims · 41 beneficiaries · Gynecologic Oncology Physician avg: 188
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$874.68
9 payments · CMS Open Payments (Sunshine Act)
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
Deirdre Knobeloch, D.O. filed 112 Medicare Part D claims in 2023 as a Gynecologic Oncology Physician in Seattle, Washington, prescribing 89% generic.
- 112
- Part D claims, 2023
- 89%
- 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.
Deirdre Knobeloch, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
112 35th percentile higher than 35% 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 certification likely (heuristic, not verified)
Deirdre Knobeloch, D.O. 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 Deirdre Knobeloch, D.O.?
Quality data not reportedPrimary specialty
Gynecologic Oncology Physician
Medicare Part D claims
112 40% vs specialty avg
Specialty distribution in Washington
How Gynecologic Oncology Physician compares to other specialties among Washington 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 Gynecologic Oncology 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).
Deirdre Knobeloch, D.O. appears in the CMS NPPES registry as a Gynecologic Oncology Physician provider holding D.O. credentials at 1560 N 115TH ST STE 101, Seattle, WA, 98133, with a listed phone of (206) 668-6806. NPI 1982947149 was issued on 04/05/2013.
Medicare Part D records for calendar year 2023 show 112 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $8K in drug spend, split 11% brand-name and 89% generic by claim count.
Gynecologic Oncology Physician is a narrow specialty nationwide, with 1,364 enrolled providers across 49 states and an average of 188 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 | 1982947149 |
|---|---|
| Specialty | Gynecologic Oncology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 04/05/2013 |
Hospital and facility affiliations
Facilities where Deirdre Knobeloch, D.O. 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.
Genesis Health System
Davenport, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Deirdre Knobeloch, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$875
Largest payer
INTUITIVE SURGICAL, 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 - 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 Deirdre Knobeloch, D.O.. To verify Deirdre Knobeloch, D.O.'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 · Typical
Deirdre Knobeloch, D.O. - brand share 11.0%
Gynecologic Oncology Physician average
11% brand-name claims vs 89% generic, on 112 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.
112
Total Claims
$8K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 193
- Total Day Supply
- 5,051
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 1.01
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 | 36 |
| Alendronate Sodium | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecologic Oncology Physician Overview
How Deirdre Knobeloch, D.O. fits within the Gynecologic Oncology Physician landscape nationally.
1,364
Gynecologic Oncology Physician Providers in US
49
States with Gynecologic Oncology Physician
188
Avg Claims per Provider
Deirdre Knobeloch, D.O.'s 112 claims are below the specialty average of 188.
Nearby Gynecologic Oncology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Knobeloch.
Dr. Crystal Adams
MD
Lacey, WA
Dr. Allison Barrie
MD
Seattle, WA
Dr. Melanie Bergman
M.D.
Spokane, WA
Dr. Michael Bidus
M.D.
Gig Harbor, WA
Dr. Amy Bondurant
MD
Seattle, WA
Compare Gynecologic Oncology 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 Gynecologic Oncology 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Washington
Frequently Asked Questions
What is Deirdre Knobeloch, D.O.'s specialty? ▼
Deirdre Knobeloch, D.O. specializes in Gynecologic Oncology Physician and practices in Seattle, Washington. Credentials: D.O..
How much does Deirdre Knobeloch, D.O. prescribe under Medicare Part D? ▼
In 2023, Deirdre Knobeloch, D.O. wrote 112 Medicare Part D claims totaling $8K in drug costs for 41 beneficiaries.
Where is Deirdre Knobeloch, D.O. located? ▼
Deirdre Knobeloch, D.O. is located at 1560 N 115TH ST STE 101, Seattle, WA, 98133. Phone: (206) 668-6806.
What is Deirdre Knobeloch, D.O.'s NPI number? ▼
Deirdre Knobeloch, D.O.'s National Provider Identifier (NPI) is 1982947149, issued on 04/05/2013.
Does Deirdre Knobeloch, D.O. prescribe more brand-name or generic drugs? ▼
Deirdre Knobeloch, D.O.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $4K in brand drug costs.
How many Gynecologic Oncology Physician providers are there in the US? ▼
There are 1,364 Gynecologic Oncology Physician providers across 49 states in the US. The average Gynecologic Oncology Physician provider writes 188 Medicare Part D claims per year.
What drugs does Deirdre Knobeloch, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Deirdre Knobeloch, D.O.'s most frequently prescribed drugs include Estradiol, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Deirdre Knobeloch, D.O. accept Medicare? ▼
Deirdre Knobeloch, D.O. appears in CMS Medicare data with 112 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Deirdre Knobeloch, D.O.'s credentials? ▼
Deirdre Knobeloch, D.O.'s NPI is 1982947149 with credentials D.O.. 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
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.