NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1184913717 D.O.
Verify on CMS → Jason Grimsman, D.O.
Emergency Medicine Physician in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine 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
125
Medicare Part D claims · 87 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
93.4/100
▲ 10 pts above national avg 83.1 · Exceptional
Industry payments
$122.7
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Jason Grimsman, D.O. reported a CMS MIPS final score of 93.4/100 - above the 83.1 national average - and filed 125 Medicare Part D claims in 2023.
- 93.4/100
- MIPS score · +10 vs avg
- 125
- 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.
Jason Grimsman, D.O.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
93 Top 29% higher than 71% 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 Jason Grimsman, D.O. sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Jason Grimsman, D.O. writes more Part D claims than 41% of them and scores higher on MIPS quality than 64% - placing this provider in the lower-volume, high-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 emergency medicine physician peer from a representative sample of 60; the gold marker is Jason Grimsman, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Jason Grimsman, D.O. 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 Jason Grimsman, D.O.?
High performer (top quartile)Primary specialty
Emergency Medicine Physician
Medicare Part D claims
125 64% vs specialty avg
MIPS final score
93.4/100 10.3 pts vs avg
Specialty distribution in Arizona
How Emergency Medicine Physician compares to other specialties among Arizona providers
Medicare quality performance, MIPS
Jason Grimsman, D.O.'s 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 93.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 93.4/100 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).
Jason Grimsman, D.O. appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding D.O. credentials at 9201 W THOMAS RD, Phoenix, AZ, 85037, with a listed phone of (623) 327-4040. NPI 1184913717 was issued on 04/05/2011.
Medicare Part D records for calendar year 2023 show 125 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 13.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.4/100 for the 2023 performance year (Quality 94.6, Cost 62.1), compared with the national average of 83.1.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1184913717 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 04/05/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.3786
Final Score
Avg: 83.1
94.5781
Quality
62.1452
Cost
96
Promoting Interoperability
Reporting: Group practice
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 Jason Grimsman, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$123
Largest payer
Janssen Pharmaceuticals, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
125
Total Claims
$3K
Total Drug Cost
87
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 125
- Total Day Supply
- 1,113
- Generic Drug Cost
- $2K
- Opioid Claims
- 17 (13.6% rate)
- Antibiotic Claims
- 54
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 2.02
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jason Grimsman, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cefdinir
Cefdinir
13 claims
- Azithromycin
Azithromycin
12 claims
- Prednisone
Prednisone
12 claims
| Drug | Claims |
|---|---|
| Cefdinir | 13 |
| Azithromycin | 12 |
| Prednisone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Jason Grimsman, D.O. fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Jason Grimsman, D.O.'s 125 claims are below the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Grimsman.
Dr. Dimyana Abdelmalek
MD
Chinle, AZ
Dr. Linda Abernathy
MD
Tuba City, AZ
Dr. Sameer Aboufadel
DO, MPH
Tucson, AZ
Dr. Josephine Acuna
M.D
Tucson, AZ
Dr. Norberto Adame
MD
Phoenix, AZ
Compare Emergency Medicine 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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 Jason Grimsman, D.O.'s specialty? ▼
Jason Grimsman, D.O. specializes in Emergency Medicine Physician and practices in Phoenix, Arizona. Credentials: D.O..
How much does Jason Grimsman, D.O. prescribe under Medicare Part D? ▼
In 2023, Jason Grimsman, D.O. wrote 125 Medicare Part D claims totaling $3K in drug costs for 87 beneficiaries.
What is Jason Grimsman, D.O.'s Medicare quality score? ▼
Jason Grimsman, D.O. has a CMS MIPS Final Score of 93.4/100 (Quality: 94.6, Cost: 62.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Jason Grimsman, D.O. located? ▼
Jason Grimsman, D.O. is located at 9201 W THOMAS RD, Phoenix, AZ, 85037. Phone: (623) 327-4040.
What is Jason Grimsman, D.O.'s NPI number? ▼
Jason Grimsman, D.O.'s National Provider Identifier (NPI) is 1184913717, issued on 04/05/2011.
Does Jason Grimsman, D.O. prescribe opioids? ▼
Yes, Jason Grimsman, D.O. had 17 opioid claims in 2023 with an opioid prescribing rate of 13.6%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Jason Grimsman, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jason Grimsman, D.O.'s most frequently prescribed drugs include Cefdinir, Azithromycin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jason Grimsman, D.O. accept Medicare? ▼
Jason Grimsman, D.O. appears in CMS Medicare data with 125 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jason Grimsman, D.O.'s credentials? ▼
Jason Grimsman, D.O.'s NPI is 1184913717 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.
- 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
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.