NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1841208964 M.D.
Verify on CMS → Bijan Ghatan, M.D.
Internal Medicine Physician in Carson, 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 172,737 in Internal 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
6K
Medicare Part D claims · 172 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% 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
Bijan Ghatan, M.D. filed 5,825 Medicare Part D claims in 2023 as a Internal Medicine Physician in Carson, California, prescribing 92% generic.
- 6K
- Part D claims, 2023
- 92%
- generic prescribing
- 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.
Bijan Ghatan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,825 Top 5% higher than 95% 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
✓
Board certification likely (heuristic, not verified)
Bijan Ghatan, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Bijan Ghatan, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
5,825 114% vs specialty avg
Specialty distribution in California
How Internal Medicine 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 Internal 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).
Bijan Ghatan, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 20401 AVALON BLVD, Carson, CA, 90746, with a listed phone of (310) 327-8877. NPI 1841208964 was issued on 08/04/2006.
Medicare Part D records for calendar year 2023 show 5,825 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $401K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 2.7%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1841208964 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/04/2006 |
Hospital and facility affiliations
Facilities where Bijan Ghatan, M.D. 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.
Providence Medical Institute
Carson, 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 Bijan Ghatan, M.D.. To verify Bijan Ghatan, M.D.'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.
Brand vs generic prescribing mix · Generic-heavy
Bijan Ghatan, M.D. - brand share 8.0%
Internal Medicine Physician average
8% brand-name claims vs 92% generic, on 5,825 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.
5,825
Total Claims
$401K
Total Drug Cost
172
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,976
- Total Day Supply
- 248,379
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $220K
- Generic Drug Cost
- $178K
- Opioid Claims
- 157 (2.7% rate)
- Antibiotic Claims
- 70
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 2.43
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 41, 65-74: 71, 75-84: 38, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bijan Ghatan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
344 claims
- Famotidine
Famotidine
223 claims
- Amlodipine Besylate
Amlodipine Besylate
210 claims
- Baclofen
Baclofen
207 claims
- Glycopyrrolate
Glycopyrrolate
196 claims
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
183 claims
- Metformin Hcl
Metformin Hcl
166 claims
- Metoprolol Tartrate
Metoprolol Tartrate
152 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 344 |
| Famotidine | 223 |
| Amlodipine Besylate | 210 |
| Baclofen | 207 |
| Glycopyrrolate | 196 |
| Chlorhexidine Gluconate | 183 |
| Metformin Hcl | 166 |
| Metoprolol Tartrate | 152 |
| Omeprazole | 134 |
| Metoclopramide Hcl | 120 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Bijan Ghatan, M.D. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Bijan Ghatan, M.D.'s 5,825 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ghatan.
Dr. Jacob Aaron
MD
San Francisco, CA
Dr. Alistair Aaronson
MD
Stanford, CA
Dr. Jose Abad.
MD
Sacramento, CA
Dr. Donna Abare
MD
Oakland, CA
Marce Abare
Scotts Valley, CA
Compare Internal 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 Internal 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 Bijan Ghatan, M.D.'s specialty? ▼
Bijan Ghatan, M.D. specializes in Internal Medicine Physician and practices in Carson, California. Credentials: M.D..
How much does Bijan Ghatan, M.D. prescribe under Medicare Part D? ▼
In 2023, Bijan Ghatan, M.D. wrote 5,825 Medicare Part D claims totaling $401K in drug costs for 172 beneficiaries.
Where is Bijan Ghatan, M.D. located? ▼
Bijan Ghatan, M.D. is located at 20401 AVALON BLVD, Carson, CA, 90746. Phone: (310) 327-8877.
What is Bijan Ghatan, M.D.'s NPI number? ▼
Bijan Ghatan, M.D.'s National Provider Identifier (NPI) is 1841208964, issued on 08/04/2006.
Does Bijan Ghatan, M.D. prescribe more brand-name or generic drugs? ▼
Bijan Ghatan, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $220K in brand drug costs.
Does Bijan Ghatan, M.D. prescribe opioids? ▼
Yes, Bijan Ghatan, M.D. had 157 opioid claims in 2023 with an opioid prescribing rate of 2.7%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Bijan Ghatan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Bijan Ghatan, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Famotidine, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bijan Ghatan, M.D. accept Medicare? ▼
Bijan Ghatan, M.D. appears in CMS Medicare data with 5,825 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bijan Ghatan, M.D.'s credentials? ▼
Bijan Ghatan, M.D.'s NPI is 1841208964 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.