NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1003026345 M.D.
Verify on CMS → Graves Stubblefield, M.D.
Hematology & Oncology Physician in Jackson, Mississippi.
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
480
Medicare Part D claims · 77 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
81%
generic claims · 19% 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
Graves Stubblefield, M.D. filed 480 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Jackson, Mississippi, prescribing 81% generic.
- 480
- Part D claims, 2023
- 81%
- 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.
Graves Stubblefield, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
480 Top 38% higher than 62% 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
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Board-eligible specialty (heuristic, not verified)
Graves Stubblefield, M.D. 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 Graves Stubblefield, M.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
480 43% vs specialty avg
Specialty distribution in Mississippi
How Hematology & Oncology Physician compares to other specialties among Mississippi 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).
Graves Stubblefield, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 406 BRIARWOOD DR, Jackson, MS, 39206, with a listed phone of (601) 991-1933. NPI 1003026345 was issued on 05/23/2007.
Medicare Part D records for calendar year 2023 show 480 prescription claims written by this provider, covering 77 Medicare beneficiaries and totaling roughly $40K in drug spend, split 19% brand-name and 81% generic by claim count.
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 | 1003026345 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/23/2007 |
Brand vs generic prescribing mix · Typical
Graves Stubblefield, M.D. - brand share 19.0%
Hematology & Oncology Physician average
19% brand-name claims vs 81% generic, on 480 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.
480
Total Claims
$40K
Total Drug Cost
77
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 521
- Total Day Supply
- 11,445
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $33K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 33
Patient Demographics
- Average Patient Age
- 81.3 years
- Avg HCC Risk Score
- 2.15
- Gender Split
- 73% female / 27% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Graves Stubblefield, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Carvedilol
Carvedilol
34 claims
- Eliquis
Eliquis
22 claims
- Famotidine
Famotidine
21 claims
- Farxiga
Farxiga
18 claims
- Pantoprazole Sodium
Pantoprazole Sodium
18 claims
- Sertraline Hcl
Sertraline Hcl
14 claims
- Januvia 13
Januvia
13 claims
- Levothyroxine Sodium 13
Levothyroxine Sodium
13 claims
| Drug | Claims |
|---|---|
| Carvedilol | 34 |
| Eliquis Apixaban | 22 |
| Famotidine | 21 |
| Farxiga Dapagliflozin Propanediol | 18 |
| Pantoprazole Sodium | 18 |
| Sertraline Hcl | 14 |
| Januvia Sitagliptin Phosphate | 13 |
| Levothyroxine Sodium | 13 |
| Mirtazapine | 12 |
| Calcitriol | 11 |
* 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 Graves Stubblefield, M.D. 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
Graves Stubblefield, M.D.'s 480 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Stubblefield.
Dr. Wail Alnas
MD
Columbus, MS
Dr. Syed Azmi
MD
Southaven, MS
Dr. Justin Baker
M.D.
Jackson, MS
Dr. Brett Barlow
M.D.
Laurel, MS
Dr. Andrew Benefield
MD
Oxford, MS
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 Mississippi 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.
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Frequently Asked Questions
What is Graves Stubblefield, M.D.'s specialty? ▼
Graves Stubblefield, M.D. specializes in Hematology & Oncology Physician and practices in Jackson, Mississippi. Credentials: M.D..
How much does Graves Stubblefield, M.D. prescribe under Medicare Part D? ▼
In 2023, Graves Stubblefield, M.D. wrote 480 Medicare Part D claims totaling $40K in drug costs for 77 beneficiaries.
Where is Graves Stubblefield, M.D. located? ▼
Graves Stubblefield, M.D. is located at 406 BRIARWOOD DR, Jackson, MS, 39206. Phone: (601) 991-1933.
What is Graves Stubblefield, M.D.'s NPI number? ▼
Graves Stubblefield, M.D.'s National Provider Identifier (NPI) is 1003026345, issued on 05/23/2007.
Does Graves Stubblefield, M.D. prescribe more brand-name or generic drugs? ▼
Graves Stubblefield, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $33K in brand drug costs.
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 Graves Stubblefield, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Graves Stubblefield, M.D.'s most frequently prescribed drugs include Carvedilol, Eliquis, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Graves Stubblefield, M.D. accept Medicare? ▼
Graves Stubblefield, M.D. appears in CMS Medicare data with 480 Part D claims and 77 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Graves Stubblefield, M.D.'s credentials? ▼
Graves Stubblefield, M.D.'s NPI is 1003026345 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.