NPI registry status
Active
2026 NPPES data Ph.D. Medical Genetics NPI 1225013790 MD,DMD,FACS
Verify on CMS → Granger Wong, MD,DMD,FACS
Ph.D. Medical Genetics in Sacramento, 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 357 in Ph.D. Medical Genetics, 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
67
Medicare Part D claims · 25 beneficiaries · Ph.D. Medical Genetics avg: 984
Industry payments
$841.27
16 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
Granger Wong, MD,DMD,FACS filed 67 Medicare Part D claims in 2023 as a Ph.D. Medical Genetics in Sacramento, California.
- 67
- Part D claims, 2023
- $841.27
- industry payments (Sunshine Act)
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.
Granger Wong, MD,DMD,FACS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
67 0th percentile higher than 0% 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
What does the federal data show about Granger Wong, MD,DMD,FACS?
Quality data not reportedPrimary specialty
Ph.D. Medical Genetics
Medicare Part D claims
67 93% vs specialty avg
Specialty distribution in California
How Ph.D. Medical Genetics compares to other specialties among California 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 Ph.D. Medical Genetics. 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).
Granger Wong, MD,DMD,FACS appears in the CMS NPPES registry as a Ph.D. Medical Genetics provider holding MD,DMD,FACS credentials at 2221 STOCKTON BLVD, Sacramento, CA, 95817, with a listed phone of (916) 734-2130. NPI 1225013790 was issued on 12/07/2005.
Medicare Part D records for calendar year 2023 show 67 prescription claims written by this provider, covering 25 Medicare beneficiaries and totaling roughly $640 in drug spend, with an opioid prescribing rate of 17.9%.
Ph.D. Medical Genetics is a narrow specialty nationwide, with 357 enrolled providers across 46 states and an average of 984 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 | 1225013790 |
|---|---|
| Specialty | Ph.D. Medical Genetics |
| Credentials | MD,DMD,FACS |
| Gender | Male |
| NPI Issued | 12/07/2005 |
Hospital and facility affiliations
Facilities where Granger Wong, MD,DMD,FACS 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.
Regents OF The Univ OF CA
French Camp, 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).
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 Granger Wong, MD,DMD,FACS. Source: openpaymentsdata.cms.gov.
Total received
$841
Largest payer
Mentor Worldwide LLC
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 - 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 Granger Wong, MD,DMD,FACS. To verify Granger Wong, MD,DMD,FACS'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.
67
Total Claims
$640
Total Drug Cost
25
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 71
- Total Day Supply
- 617
- Brand Drug Cost
- $0
- Generic Drug Cost
- $640
- Opioid Claims
- 12 (17.9% rate)
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 0.68
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Doxycycline Monohydrate | 17 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ph.D. Medical Genetics Overview
How Granger Wong, MD,DMD,FACS fits within the Ph.D. Medical Genetics landscape nationally.
357
Ph.D. Medical Genetics Providers in US
46
States with Ph.D. Medical Genetics
984
Avg Claims per Provider
Granger Wong, MD,DMD,FACS's 67 claims are below the specialty average of 984.
Nearby Ph.D. Medical Genetics Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Wong.
Dr. Swaroop Aradhya
PH.D.
Palo Alto, CA
Moshe Azizi
Beverly Hills, CA
Dr. Harbinder Brar
M.D. INC
Riverside, CA
Dr. Robert Brink
M.D.
San Mateo, CA
Dr. Andre Burton
M.D
Anaheim, CA
Compare Ph.D. Medical Genetics 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 Ph.D. Medical Genetics 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 California
Frequently Asked Questions
What is Granger Wong, MD,DMD,FACS's specialty? ▼
Granger Wong, MD,DMD,FACS specializes in Ph.D. Medical Genetics and practices in Sacramento, California. Credentials: MD,DMD,FACS.
How much does Granger Wong, MD,DMD,FACS prescribe under Medicare Part D? ▼
In 2023, Granger Wong, MD,DMD,FACS wrote 67 Medicare Part D claims totaling $640 in drug costs for 25 beneficiaries.
Where is Granger Wong, MD,DMD,FACS located? ▼
Granger Wong, MD,DMD,FACS is located at 2221 STOCKTON BLVD, Sacramento, CA, 95817. Phone: (916) 734-2130.
What is Granger Wong, MD,DMD,FACS's NPI number? ▼
Granger Wong, MD,DMD,FACS's National Provider Identifier (NPI) is 1225013790, issued on 12/07/2005.
Does Granger Wong, MD,DMD,FACS prescribe opioids? ▼
Yes, Granger Wong, MD,DMD,FACS had 12 opioid claims in 2023 with an opioid prescribing rate of 17.9%.
How many Ph.D. Medical Genetics providers are there in the US? ▼
There are 357 Ph.D. Medical Genetics providers across 46 states in the US. The average Ph.D. Medical Genetics provider writes 984 Medicare Part D claims per year.
What drugs does Granger Wong, MD,DMD,FACS prescribe most often? ▼
Based on 2023 Medicare Part D data, Granger Wong, MD,DMD,FACS's most frequently prescribed drugs include Doxycycline Monohydrate, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Granger Wong, MD,DMD,FACS accept Medicare? ▼
Granger Wong, MD,DMD,FACS appears in CMS Medicare data with 67 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Granger Wong, MD,DMD,FACS's credentials? ▼
Granger Wong, MD,DMD,FACS's NPI is 1225013790 with credentials MD,DMD,FACS. 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.