NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1407863038 D.O.
Verify on CMS → John Gray, D.O.
Family Medicine Physician in Salinas, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family 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
717
Medicare Part D claims · 223 beneficiaries · Family Medicine Physician avg: 3K
MIPS score
84.6/100
▲ 1 pts above national avg 83.5 · Above neutral
What the federal data shows
John Gray, D.O. reported a CMS MIPS final score of 84.6/100 - above the 83.5 national average - and filed 717 Medicare Part D claims in 2023.
- 84.6/100
- MIPS score · +1 vs avg
- 717
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥42nd
- pct among measured MIPS (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.
John Gray, D.O.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
85 ≥ 42nd percentile 42% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where John Gray, D.O. sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, John Gray, D.O. writes more Part D claims than 30% of them and scores higher on MIPS quality than 43% - 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 family medicine physician peer from a representative sample of 60; the gold marker is John Gray, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
John Gray, D.O. 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 John Gray, D.O.?
Near national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
717 79% vs specialty avg
MIPS final score
84.6/100 1.1 pts vs avg
Specialty distribution in California
How Family Medicine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
John Gray, D.O.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 84.6/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) - 84.6/100 vs national avg 83.5
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).
John Gray, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 1212 S MAIN ST, Salinas, CA, 93901, with a listed phone of (831) 422-7777. NPI 1407863038 was issued on 08/03/2006.
Medicare Part D records for calendar year 2023 show 717 prescription claims written by this provider, covering 223 Medicare beneficiaries and totaling roughly $46K in drug spend, with an opioid prescribing rate of 1.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 84.6/100 for the 2023 performance year (Quality 74.4, Cost 74.1), compared with the 83.5 average among clinicians with a measured score.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1407863038 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 08/03/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
84.5567
Final Score
Measured-score avg: 83.5
74.3924
Quality
74.115
Cost
81
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where John Gray, 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.
Doctors ON Duty Medical Group, Inc
Salinas, CA
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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to John Gray, D.O.. To verify John Gray, D.O.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
717
Total Claims
$46K
Total Drug Cost
223
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,185
- Total Day Supply
- 29,556
- Generic Drug Cost
- $15K
- Opioid Claims
- 13 (1.8% rate)
- Antibiotic Claims
- 128
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 23, 65-74: 113, 75-84: 59, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Gray, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Azithromycin
Azithromycin
45 claims
- Lisinopril
Lisinopril
30 claims
- Gabapentin
Gabapentin
27 claims
- Omeprazole
Omeprazole
24 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
21 claims
- Diclofenac Sodium
Diclofenac Sodium
21 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
20 claims
- Prednisone
Prednisone
19 claims
| Drug | Claims |
|---|---|
| Azithromycin | 45 |
| Lisinopril | 30 |
| Gabapentin | 27 |
| Omeprazole | 24 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 21 |
| Diclofenac Sodium | 21 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 20 |
| Prednisone | 19 |
| Levothyroxine Sodium | 18 |
| Metformin Hcl | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How John Gray, D.O. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
John Gray, D.O.'s 717 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Gray.
Dr. Omer Aba-Omer
MD
Santa Monica, CA
Dr. Michelle Ababa
MD
Wilmington, CA
Dr. Anna Tzeitel Abalos
MD
Roseville, CA
Dr. Adan Abarca
MD
Anaheim, CA
Dr. Lorraine Abate
M.D.
Sacramento, CA
Compare Family 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family 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 John Gray, D.O.'s specialty? ▼
John Gray, D.O. specializes in Family Medicine Physician and practices in Salinas, California. Credentials: D.O..
How much does John Gray, D.O. prescribe under Medicare Part D? ▼
In 2023, John Gray, D.O. wrote 717 Medicare Part D claims totaling $46K in drug costs for 223 beneficiaries.
What is John Gray, D.O.'s Medicare quality score? ▼
John Gray, D.O. has a CMS MIPS Final Score of 84.6/100 (Quality: 74.4, Cost: 74.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Gray, D.O. located? ▼
John Gray, D.O. is located at 1212 S MAIN ST, Salinas, CA, 93901. Phone: (831) 422-7777.
What is John Gray, D.O.'s NPI number? ▼
John Gray, D.O.'s National Provider Identifier (NPI) is 1407863038, issued on 08/03/2006.
Does John Gray, D.O. prescribe opioids? ▼
Yes, John Gray, D.O. had 13 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does John Gray, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Gray, D.O.'s most frequently prescribed drugs include Azithromycin, Lisinopril, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Gray, D.O. accept Medicare? ▼
John Gray, D.O. appears in CMS Medicare data with 717 Part D claims and 223 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Gray, D.O.'s credentials? ▼
John Gray, D.O.'s NPI is 1407863038 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.