NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1184351355 MD
Verify on CMS → David Altman, MD
General Practice Physician in Stanford, 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 16,838 in General Practice 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
51
Medicare Part D claims · 12 beneficiaries · General Practice Physician avg: 3K
What the federal data shows
David Altman, MD filed 51 Medicare Part D claims in 2024 as a General Practice Physician in Stanford, California.
- 51
- Part D claims, 2024
- ≥0th
- 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 David Altman, MD
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 1184351355), first enumerated 08/06/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 51 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not David Altman, MD's individual license status. Verify directly with the state medical board.
Source: MBC 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 1184351355 · General Practice Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1184351355
- ENUM-RECENT 2022
- TAX-MID 17K General Practice
- RX-TRACE 51
- BOOK-LIGHT 1,869 in California
- PHOTO-ENUM Yannelly Garrido Ant… · 2022
David Altman, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
51 ≥ 0th percentile 0% of 1,416,883 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 · 2024
◑
Board-eligible specialty (heuristic, not verified)
David Altman, MD 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 David Altman, MD?
Quality data not reportedPrimary specialty
General Practice Physician
Medicare Part D claims
51 98% vs specialty avg
Specialty distribution in California
How General Practice Physician 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 General Practice 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 | 1184351355 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/06/2022 |
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 David Altman, MD. To verify David Altman, MD'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 2024.
51
Total Claims
$3K
Total Drug Cost
12
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 83.967
- Total Day Supply
- 2,363
- Generic Drug Cost
- $695
Patient Demographics
- Average Patient Age
- 76.2 years
- Avg HCC Risk Score
- 1.77
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
General Practice Physician Overview
How David Altman, MD fits within the General Practice Physician landscape nationally.
16,838
General Practice Physician Providers in US
56
States with General Practice Physician
2,957
Avg Claims per Provider
David Altman, MD's 51 claims are below the specialty average of 2,957.
Nationwide General Practice Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Altman, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby General Practice Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Altman.
One of 1,869 General Practice Physician providers enrolled in California, 5 are shown here.
Dr. Dalal Aago
MD
El Cajon, CA
Dr. Hessam Aazami
M.D.
Canoga Park, CA
Dr. Kenric Aban
M.D.
Oceanside, CA
Dr. Tahira Abbasi
MD
La Jolla, CA
Dr. Ryan Abbott
M.D.
Los Angeles, CA
Compare General Practice Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Altman, MD's specialty? ▼
David Altman, MD specializes in General Practice Physician and practices in Stanford, California. Credentials: MD.
How much does David Altman, MD prescribe under Medicare Part D? ▼
In 2024, David Altman, MD wrote 51 Medicare Part D claims totaling $3K in drug costs for 12 beneficiaries.
Where is David Altman, MD located? ▼
David Altman, MD is located at 300 PASTEUR DRIVE, ROOM H3580, Stanford, CA, 94305. Phone: (650) 723-6412.
What is David Altman, MD's NPI number? ▼
David Altman, MD's National Provider Identifier (NPI) is 1184351355, issued on 08/06/2022.
How many General Practice Physician providers are there in the US? ▼
There are 16,838 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,957 Medicare Part D claims per year.
Does David Altman, MD accept Medicare? ▼
David Altman, MD appears in CMS Medicare data with 51 Part D claims and 12 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Altman, MD's credentials? ▼
David Altman, MD's NPI is 1184351355 with credentials MD. 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 (2024). 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 August 2026 (NPPES) / 2024 (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.