2026 NPPES data Medical Oncology Physician NPI 1194986794 MD
Verify on CMS →

BABAK RAJABI, MD

Medical Oncology Physician in CARMICHAEL, 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
1K
Medicare Part D claims · 171 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.9K
55 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

BABAK RAJABI, MD filed 1,059 Medicare Part D claims in 2023 as a Medical Oncology Physician in CARMICHAEL, California, prescribing 74% generic.

1K
Part D claims, 2023
74%
generic prescribing
$2.9K
industry payments (Sunshine Act)

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.

BABAK RAJABI, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,059 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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-eligible specialty (heuristic — not verified)

BABAK RAJABI, 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 BABAK RAJABI, MD?

Quality data not reported

NPI registry status

Active

Issued 06/17/2008

NPI 1194986794

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

1,059 54% vs specialty avg

2023 prescription claims

Specialty avg: 689

Specialty distribution in California

How Medical Oncology Physician compares to other specialties among California providers

California providers

Medical Oncology Physician share within California

1. Medical Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Oncology Physician share within California

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical Oncology Physician) — 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).

BABAK RAJABI, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 6555 COYLE AVE STE 301, CARMICHAEL, CA, 95608, with a listed phone of (916) 962-1544. NPI 1194986794 was issued on 06/17/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAJABI 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 1,059 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $2.8 million in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 4.8%. 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.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 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

6555 COYLE AVE STE 301
CARMICHAEL, CA 95608

Provider Details

NPI 1194986794
Specialty Medical Oncology Physician
Credentials MD
Gender Male
NPI Issued 06/17/2008

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for BABAK RAJABI, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.9K

Largest payer

Novartis Pharmaceuticals Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 BABAK RAJABI, MD. To verify BABAK RAJABI, 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.

Brand vs generic prescribing mix · Above average

BABAK RAJABI, MD — brand share 26.0%
Specialty average (est.)

26% brand-name claims vs 74% generic, on 1,059 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.

1,059
Total Claims
$2.8M
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,313
Total Day Supply
36,836
Brand vs Generic
26% brand / 74% generic
Brand Drug Cost
$2.4M
Generic Drug Cost
$396K
Opioid Claims
51 (4.8% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.90
Gender Split
63% female / 37% male
Age Distribution
<65: 18, 65-74: 95, 75-84: 42, 85+: 16

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What BABAK RAJABI, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Anastrozole
68
Eliquis
Apixaban
65
Ondansetron Hcl
58
Prochlorperazine Maleate
51
Hydroxyurea
46
Dexamethasone
40
Duloxetine Hcl
39
Levothyroxine Sodium
37
Mirtazapine
35
Xtandi
Enzalutamide
30

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Oncology Physician Overview

How BABAK RAJABI, MD fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

BABAK RAJABI, MD's 1,059 claims are above the specialty average of 689.

Nearby Medical Oncology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as RAJABI.

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BABAK RAJABI, MD's specialty?
BABAK RAJABI, MD specializes in Medical Oncology Physician and practices in CARMICHAEL, California. Credentials: MD.
How much does BABAK RAJABI, MD prescribe under Medicare Part D?
In 2023, BABAK RAJABI, MD wrote 1,059 Medicare Part D claims totaling $2.8M in drug costs for 171 beneficiaries.
Where is BABAK RAJABI, MD located?
BABAK RAJABI, MD is located at 6555 COYLE AVE STE 301, CARMICHAEL, CA, 95608. Phone: (916) 962-1544.
What is BABAK RAJABI, MD's NPI number?
BABAK RAJABI, MD's National Provider Identifier (NPI) is 1194986794, issued on 06/17/2008.
Does BABAK RAJABI, MD prescribe more brand-name or generic drugs?
BABAK RAJABI, MD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $2.4M in brand drug costs.
Does BABAK RAJABI, MD prescribe opioids?
Yes, BABAK RAJABI, MD had 51 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does BABAK RAJABI, MD prescribe most often?
Based on 2023 Medicare Part D data, BABAK RAJABI, MD's most frequently prescribed drugs include Anastrozole, Eliquis, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BABAK RAJABI, MD accept Medicare?
BABAK RAJABI, MD appears in CMS Medicare data with 1,059 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BABAK RAJABI, MD's credentials?
BABAK RAJABI, MD's NPI is 1194986794 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

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