NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1790782209 M.D.
Verify on CMS → Jonathan Grymaloski, M.D.
Obstetrics & Gynecology Physician in Everson, 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 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
5K
Medicare Part D claims · 266 beneficiaries · Obstetrics & Gynecology Physician avg: 177
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Jonathan Grymaloski, M.D. filed 5,176 Medicare Part D claims in 2023 as an Obstetrics & Gynecology Physician in Everson, Washington, prescribing 88% generic.
- 5K
- Part D claims, 2023
- 88%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥94th
- 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 Jonathan Grymaloski, M.D.
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 1790782209), first enumerated 06/30/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 5,176 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
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Jonathan Grymaloski, M.D.'s individual license status. Verify directly with the state medical board.
Source: WMC 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 1790782209 · Obstetrics & Gynecology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1790782209
- ENUM-LEGACY 2005
- TAX-MID 45K Obstetrics &
- RX-MID 5,176
- BOOK-LIGHT 1,027 in Washington
- PHOTO-ENUM William Shuell · 2005
Jonathan Grymaloski, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,176 ≥ 94th percentile 94% of 1,380,665 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 · 2023
✓
Board certification likely (heuristic, not verified)
Jonathan Grymaloski, M.D. 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 Jonathan Grymaloski, M.D.?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
5,176 29× vs specialty avg
Specialty distribution in Washington
How Obstetrics & Gynecology 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 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 | 1790782209 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/30/2005 |
Hospital and facility affiliations
Facilities where Jonathan Grymaloski, 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.
Sea Mar Community Health Centers
Bellingham, 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 Jonathan Grymaloski, M.D.. To verify Jonathan Grymaloski, 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 · Typical
Jonathan Grymaloski, M.D. - brand share 11.0%
Obstetrics & Gynecology Physician average
11% brand-name claims vs 88% generic, on 5,176 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.
5,176
Total Claims
$419K
Total Drug Cost
266
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,616.18
- Total Day Supply
- 246,732
- Brand vs Generic
- 11% brand / 88% generic
- Brand Drug Cost
- $332K
- Generic Drug Cost
- $85K
- Opioid Claims
- 193 (3.7% rate)
- Antibiotic Claims
- 93
Patient Demographics
- Average Patient Age
- 67.7 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 68, 65-74: 143, 75-84: 43, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jonathan Grymaloski, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
347 claims
- Metformin Hcl
Metformin Hcl
244 claims
- Lisinopril
Lisinopril
223 claims
- Famotidine
Famotidine
209 claims
- Jardiance
Jardiance
161 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
146 claims
- Omeprazole
Omeprazole
145 claims
- Gabapentin 117
Gabapentin
117 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 347 |
| Metformin Hcl | 244 |
| Lisinopril | 223 |
| Famotidine | 209 |
| Jardiance Empagliflozin | 161 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 146 |
| Omeprazole | 145 |
| Gabapentin | 117 |
| Levothyroxine Sodium | 105 |
| Amlodipine Besylate | 103 |
* 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 Jonathan Grymaloski, M.D. fits within the Obstetrics & Gynecology Physician landscape nationally.
45,074
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
177
Avg Claims per Provider
Jonathan Grymaloski, M.D.'s 5,176 claims are above the specialty average of 177.
Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Grymaloski, both outside Washington 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 Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Grymaloski.
One of 1,027 Obstetrics & Gynecology Physician providers enrolled in Washington, 5 are shown here.
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 →
Frequently Asked Questions
What is Jonathan Grymaloski, M.D.'s specialty? ▼
Jonathan Grymaloski, M.D. specializes in Obstetrics & Gynecology Physician and practices in Everson, Washington. Credentials: M.D..
How much does Jonathan Grymaloski, M.D. prescribe under Medicare Part D? ▼
In 2023, Jonathan Grymaloski, M.D. wrote 5,176 Medicare Part D claims totaling $419K in drug costs for 266 beneficiaries.
Where is Jonathan Grymaloski, M.D. located? ▼
Jonathan Grymaloski, M.D. is located at 6884 HANNEGAN RD, Everson, WA, 98247. Phone: (360) 354-0766.
What is Jonathan Grymaloski, M.D.'s NPI number? ▼
Jonathan Grymaloski, M.D.'s National Provider Identifier (NPI) is 1790782209, issued on 06/30/2005.
Does Jonathan Grymaloski, M.D. prescribe more brand-name or generic drugs? ▼
Jonathan Grymaloski, M.D.'s prescribing is 11% brand-name and 88% generic drugs by claim count, with $332K in brand drug costs.
Does Jonathan Grymaloski, M.D. prescribe opioids? ▼
Yes, Jonathan Grymaloski, M.D. had 193 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
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 177 Medicare Part D claims per year.
What drugs does Jonathan Grymaloski, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jonathan Grymaloski, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jonathan Grymaloski, M.D. accept Medicare? ▼
Jonathan Grymaloski, M.D. appears in CMS Medicare data with 5,176 Part D claims and 266 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jonathan Grymaloski, M.D.'s credentials? ▼
Jonathan Grymaloski, M.D.'s NPI is 1790782209 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.
- 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 August 2026.