NPI registry status
Active
2026 NPPES data Oncology Pharmacist NPI 1396222576
Verify on CMS → Ali Arianjam
Oncology Pharmacist in Santa Rosa, 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 1,720 in Oncology Pharmacist, 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
101
Medicare Part D claims · 50 beneficiaries · Oncology Pharmacist avg: 160
Generic prescribing
66%
generic claims · 34% 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
Ali Arianjam filed 101 Medicare Part D claims in 2023 as a Oncology Pharmacist in Santa Rosa, California, prescribing 66% generic.
- 101
- Part D claims, 2023
- 66%
- 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.
Ali Arianjam's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
101 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
What does the federal data show about Ali Arianjam?
Quality data not reportedPrimary specialty
Oncology Pharmacist
Medicare Part D claims
101 37% vs specialty avg
Specialty distribution in California
How Oncology Pharmacist 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 Oncology Pharmacist. 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).
Ali Arianjam appears in the CMS NPPES registry as a Oncology Pharmacist provider at 401 BICENTENNIAL WAY, Santa Rosa, CA, 95403, with a listed phone of (707) 393-4000. NPI 1396222576 was issued on 07/20/2018.
Medicare Part D records for calendar year 2023 show 101 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $96K in drug spend, split 34% brand-name and 66% generic by claim count.
Oncology Pharmacist is a narrow specialty nationwide, with 1,720 enrolled providers across 50 states and an average of 160 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 | 1396222576 |
|---|---|
| Specialty | Oncology Pharmacist |
| Gender | Male |
| NPI Issued | 07/20/2018 |
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 Ali Arianjam. To verify Ali Arianjam'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 · Above average
Ali Arianjam - brand share 34.0%
Oncology Pharmacist average
34% brand-name claims vs 66% generic, on 101 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.
101
Total Claims
$96K
Total Drug Cost
50
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 181
- Total Day Supply
- 4,883
- Brand vs Generic
- 34% brand / 66% generic
- Brand Drug Cost
- $94K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 77.2 years
- Avg HCC Risk Score
- 2.82
- Gender Split
- 46% female / 54% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ali Arianjam prescribes most
Top Medicare Part D drugs by claim count, 2023
- Potassium Chloride
Potassium Chloride
35 claims
- Procrit
Procrit
29 claims
- Ondansetron Hcl 12
Ondansetron Hcl
12 claims
| Drug | Claims |
|---|---|
| Potassium Chloride | 35 |
| Procrit Epoetin Alfa | 29 |
| Ondansetron Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Oncology Pharmacist Overview
How Ali Arianjam fits within the Oncology Pharmacist landscape nationally.
1,720
Oncology Pharmacist Providers in US
50
States with Oncology Pharmacist
160
Avg Claims per Provider
Ali Arianjam's 101 claims are below the specialty average of 160.
Nearby Oncology Pharmacist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Arianjam.
Dr. Jayrom Acorda
PHARM.D.
Palm Springs, CA
Dr. Antonio Acuna
PHARMD
San Diego, CA
Dr. Leena Agrawal
PHARMD
Santa Rosa, CA
Dr. Artemio Alanis
PHARMD
Fairfield, CA
Dr. Maher Alhaja
PHARMD
San Diego, CA
Compare Oncology Pharmacist 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 Oncology Pharmacist 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 Ali Arianjam's specialty? ▼
Ali Arianjam specializes in Oncology Pharmacist and practices in Santa Rosa, California.
How much does Ali Arianjam prescribe under Medicare Part D? ▼
In 2023, Ali Arianjam wrote 101 Medicare Part D claims totaling $96K in drug costs for 50 beneficiaries.
Where is Ali Arianjam located? ▼
Ali Arianjam is located at 401 BICENTENNIAL WAY, Santa Rosa, CA, 95403. Phone: (707) 393-4000.
What is Ali Arianjam's NPI number? ▼
Ali Arianjam's National Provider Identifier (NPI) is 1396222576, issued on 07/20/2018.
Does Ali Arianjam prescribe more brand-name or generic drugs? ▼
Ali Arianjam's prescribing is 34% brand-name and 66% generic drugs by claim count, with $94K in brand drug costs.
How many Oncology Pharmacist providers are there in the US? ▼
There are 1,720 Oncology Pharmacist providers across 50 states in the US. The average Oncology Pharmacist provider writes 160 Medicare Part D claims per year.
What drugs does Ali Arianjam prescribe most often? ▼
Based on 2023 Medicare Part D data, Ali Arianjam's most frequently prescribed drugs include Potassium Chloride, Procrit, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ali Arianjam accept Medicare? ▼
Ali Arianjam appears in CMS Medicare data with 101 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ali Arianjam's credentials? ▼
Ali Arianjam's NPI is 1396222576. 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.