2026 NPPES data Oncology Pharmacist NPI 1396222576
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ALI ARIANJAM

Oncology Pharmacist in SANTA ROSA, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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
What the federal data reveals: ALI ARIANJAM is a Oncology Pharmacist ([object Object]) practicing in SANTA ROSA, California with a Medicare Part D prescribing footprint of 101 claims across 50 beneficiaries — 34% brand-name prescribing .

What stands out: ALI ARIANJAM filed 101 Medicare Part D claims in 2023 across SANTA ROSA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ALI ARIANJAM at a glance

Quality data not reported

NPI registry status

Active

Issued 07/20/2018

NPI 1396222576

Primary specialty

Oncology Pharmacist

Niche

1,699 US NPIs in this specialty

Medicare Part D claims

101 37% vs specialty avg

2023 prescription claims

Specialty avg: 160

Specialty distribution in California

How Oncology Pharmacist compares to other specialties among California providers

California providers

Oncology Pharmacist share within California

1. Oncology Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oncology Pharmacist share within California

Specialty board-certification context

Estimated specialty board-certified rate — Oncology Pharmacist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Oncology Pharmacist ABMS/AOA estimate

Est. board-certified rate (Oncology Pharmacist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Oncology Pharmacist) — ABMS / AOA estimate

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 is a Oncology Pharmacist provider practicing in SANTA ROSA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1396222576. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARIANJAM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Oncology Pharmacist is a narrow specialty nationwide, with 1,699 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

401 BICENTENNIAL WAY
SANTA ROSA, CA 95403

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%
Specialty average (est.)

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.

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.

1,699
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.

Compare Oncology Pharmacist nationally: see state-by-state distribution →

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 1,699 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

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