NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1104883644 MD
Verify on CMS → David Adkins, MD
Hematology & Oncology Physician in Modesto, 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 11,215 in Hematology & Oncology 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
1K
Medicare Part D claims · 196 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$939.15
9 payments · CMS Open Payments (Sunshine Act)
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
David Adkins, MD filed 1,366 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Modesto, California, prescribing 83% generic.
- 1K
- Part D claims, 2023
- 83%
- generic prescribing
- $939.15
- 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.
David Adkins, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,366 Top 21% higher than 79% 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-eligible specialty (heuristic, not verified)
David Adkins, 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 Adkins, MD?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
1,366 61% vs specialty avg
Specialty distribution in California
How Hematology & Oncology 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 Hematology & Oncology 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).
David Adkins, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 600 COFFEE RD, Modesto, CA, 95355, with a listed phone of (209) 521-6097. NPI 1104883644 was issued on 04/27/2006.
Medicare Part D records for calendar year 2023 show 1,366 prescription claims written by this provider, covering 196 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 15.5%.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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 | 1104883644 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/27/2006 |
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 David Adkins, MD. Source: openpaymentsdata.cms.gov.
Total received
$939
Largest payer
Roche Diagnostics 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 David Adkins, MD. To verify David Adkins, 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 · Typical
David Adkins, MD - brand share 17.0%
Hematology & Oncology Physician average
17% brand-name claims vs 83% generic, on 1,366 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.
1,366
Total Claims
$2.3M
Total Drug Cost
196
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,071
- Total Day Supply
- 55,149
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $1.9M
- Generic Drug Cost
- $398K
- Opioid Claims
- 212 (15.5% rate)
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Adkins, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
115 claims
- Prochlorperazine M…
Prochlorperazine Maleate
80 claims
- Tamoxifen Citrate
Tamoxifen Citrate
76 claims
- Dexamethasone
Dexamethasone
66 claims
- Hydroxyurea
Hydroxyurea
57 claims
- Oxycodone Hcl
Oxycodone Hcl
57 claims
- Abiraterone Acetate
Abiraterone Acetate
51 claims
- Prednisone
Prednisone
49 claims
| Drug | Claims |
|---|---|
| Anastrozole | 115 |
| Prochlorperazine Maleate | 80 |
| Tamoxifen Citrate | 76 |
| Dexamethasone | 66 |
| Hydroxyurea | 57 |
| Oxycodone Hcl | 57 |
| Abiraterone Acetate | 51 |
| Prednisone | 49 |
| Ondansetron Hcl | 46 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How David Adkins, MD fits within the Hematology & Oncology Physician landscape nationally.
11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
David Adkins, MD's 1,366 claims are above the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Adkins.
Dr. Mark Abate
M.D.
Santa Barbara, CA
Dr. Iman Abdalla
MD
Los Angeles, CA
Dr. Nihal Abdulla
MD
Los Alamitos, CA
Dr. Oyewale Abidoye
M.D.
La Jolla, CA
Dr. Mohamad Adada
M.D., PHD
Roseville, CA
Compare Hematology & Oncology 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 Hematology & Oncology 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is David Adkins, MD's specialty? ▼
David Adkins, MD specializes in Hematology & Oncology Physician and practices in Modesto, California. Credentials: MD.
How much does David Adkins, MD prescribe under Medicare Part D? ▼
In 2023, David Adkins, MD wrote 1,366 Medicare Part D claims totaling $2.3M in drug costs for 196 beneficiaries.
Where is David Adkins, MD located? ▼
David Adkins, MD is located at 600 COFFEE RD, Modesto, CA, 95355. Phone: (209) 521-6097.
What is David Adkins, MD's NPI number? ▼
David Adkins, MD's National Provider Identifier (NPI) is 1104883644, issued on 04/27/2006.
Does David Adkins, MD prescribe more brand-name or generic drugs? ▼
David Adkins, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $1.9M in brand drug costs.
Does David Adkins, MD prescribe opioids? ▼
Yes, David Adkins, MD had 212 opioid claims in 2023 with an opioid prescribing rate of 15.5%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does David Adkins, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Adkins, MD's most frequently prescribed drugs include Anastrozole, Prochlorperazine Maleate, Tamoxifen Citrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Adkins, MD accept Medicare? ▼
David Adkins, MD appears in CMS Medicare data with 1,366 Part D claims and 196 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Adkins, MD's credentials? ▼
David Adkins, MD's NPI is 1104883644 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 (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.