NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1629029889 M.D.
Verify on CMS → Grant Anderson, M.D.
Family Medicine Physician in Reno, Nevada.
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
155
Medicare Part D claims · 65 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Grant Anderson, M.D. filed 155 Medicare Part D claims in 2023 as a Family Medicine Physician in Reno, Nevada, prescribing 84% generic.
- 155
- Part D claims, 2023
- 84%
- generic prescribing
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.
Grant Anderson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
155 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
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Board-eligible specialty (heuristic, not verified)
Grant Anderson, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Grant Anderson, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
155 95% vs specialty avg
Specialty distribution in Nevada
How Family Medicine Physician compares to other specialties among Nevada 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 Family Medicine 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).
Grant Anderson, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 5345 RENO CORPORATE DR, Reno, NV, 89511, with a listed phone of (775) 825-5008. NPI 1629029889 was issued on 05/12/2006.
Medicare Part D records for calendar year 2023 show 155 prescription claims written by this provider, covering 65 Medicare beneficiaries and totaling roughly $5K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 12.3%.
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 | 1629029889 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/12/2006 |
Brand vs generic prescribing mix · Typical
Grant Anderson, M.D. - brand share 16.0%
Family Medicine Physician average
16% brand-name claims vs 84% generic, on 155 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.
155
Total Claims
$5K
Total Drug Cost
65
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 161
- Total Day Supply
- 3,369
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $3K
- Opioid Claims
- 19 (12.3% rate)
Patient Demographics
- Average Patient Age
- 82.5 years
- Avg HCC Risk Score
- 2.36
- Gender Split
- 68% female / 32% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Grant Anderson, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
16 claims
- Naloxone Hcl
Naloxone Hcl
16 claims
- Lorazepam
Lorazepam
14 claims
- Morphine Sulfate
Morphine Sulfate
13 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 16 |
| Naloxone Hcl | 16 |
| Lorazepam | 14 |
| Morphine Sulfate | 13 |
* 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 Grant Anderson, M.D. 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
Grant Anderson, M.D.'s 155 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Anderson.
Allison Abad
Las Vegas, NV
Dr. Josef Abbo
M.D.
Las Vegas, NV
Dr. Rabbiya Abidi
MD
Henderson, NV
Dr. Cheruba Abraham
M.D.
Fernley, NV
Dr. Pamela Abraham
M.D.
Reno, NV
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 Nevada 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Grant Anderson, M.D.'s specialty? ▼
Grant Anderson, M.D. specializes in Family Medicine Physician and practices in Reno, Nevada. Credentials: M.D..
How much does Grant Anderson, M.D. prescribe under Medicare Part D? ▼
In 2023, Grant Anderson, M.D. wrote 155 Medicare Part D claims totaling $5K in drug costs for 65 beneficiaries.
Where is Grant Anderson, M.D. located? ▼
Grant Anderson, M.D. is located at 5345 RENO CORPORATE DR, Reno, NV, 89511. Phone: (775) 825-5008.
What is Grant Anderson, M.D.'s NPI number? ▼
Grant Anderson, M.D.'s National Provider Identifier (NPI) is 1629029889, issued on 05/12/2006.
Does Grant Anderson, M.D. prescribe more brand-name or generic drugs? ▼
Grant Anderson, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $2K in brand drug costs.
Does Grant Anderson, M.D. prescribe opioids? ▼
Yes, Grant Anderson, M.D. had 19 opioid claims in 2023 with an opioid prescribing rate of 12.3%.
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 Grant Anderson, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Grant Anderson, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Naloxone Hcl, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Grant Anderson, M.D. accept Medicare? ▼
Grant Anderson, M.D. appears in CMS Medicare data with 155 Part D claims and 65 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Grant Anderson, M.D.'s credentials? ▼
Grant Anderson, M.D.'s NPI is 1629029889 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
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.