NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1093787541 M.D.
Verify on CMS → William Stephenson, M.D.
Hematology (Internal Medicine) Physician in Provo, Utah.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,483 in Hematology (Internal Medicine) 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
162
Medicare Part D claims · 72 beneficiaries · Hematology (Internal Medicine) Physician avg: 684
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.8K
95 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
William Stephenson, M.D. filed 162 Medicare Part D claims in 2024 as a Hematology (Internal Medicine) Physician in Provo, Utah, prescribing 59% generic.
- 162
- Part D claims, 2024
- 59%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about William Stephenson, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1093787541), first enumerated 02/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 162 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.8K in reported industry payments (95 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1093787541 · Hematology (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1093787541
- ENUM-LEGACY 2006
- TAX-NARROW 1,483
- RX-LIGHT 162
- BOOK-THIN 5 in Utah
- PHOTO-ENUM Markus Mapara, M.D. · 2006
William Stephenson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
162 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
William Stephenson, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about William Stephenson, M.D.?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
162 76% vs specialty avg
Specialty distribution in Utah
How Hematology (Internal Medicine) Physician compares to other specialties among Utah 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 (Internal Medicine) 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).
Practice Address
Provider Details
| NPI | 1093787541 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/07/2006 |
Hospital and facility affiliations
Facilities where William Stephenson, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Utah Cancer Specialists PC
Provo, UT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 William Stephenson, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.8K
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.
Brand vs generic prescribing mix · Above average
William Stephenson, M.D. - brand share 41.0%
Hematology (Internal Medicine) Physician average
41% brand-name claims vs 59% generic, on 162 2024 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 2024.
162
Total Claims
$688K
Total Drug Cost
72
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 197.933
- Total Day Supply
- 4,987
- Brand vs Generic
- 41% brand / 59% generic
- Brand Drug Cost
- $687K
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 2.19
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Calquence Acalabrutinib Maleate | 25 |
| Anastrozole | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology (Internal Medicine) Physician Overview
How William Stephenson, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,483
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
684
Avg Claims per Provider
William Stephenson, M.D.'s 162 claims are below the specialty average of 684.
Nationwide Hematology (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Stephenson, both outside Utah so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology (Internal Medicine) Physician Providers in Utah
Other clinicians with the same primary specialty enrolled in Utah, drawn from the same CMS NPPES roster as Stephenson.
One of 5 Hematology (Internal Medicine) Physician providers enrolled in Utah, 4 are shown here.
Dr. Ami Patel
M.D.
Salt Lake City, UT
Dr. Douglas Sborov
M.D.
Salt Lake City, UT
Dr. Paul Shami
MD
Salt Lake City, UT
Dr. Srinivas Tantravahi
MD
Salt Lake City, UT
Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Stephenson, M.D.'s specialty? ▼
William Stephenson, M.D. specializes in Hematology (Internal Medicine) Physician and practices in Provo, Utah. Credentials: M.D..
How much does William Stephenson, M.D. prescribe under Medicare Part D? ▼
In 2024, William Stephenson, M.D. wrote 162 Medicare Part D claims totaling $688K in drug costs for 72 beneficiaries.
Where is William Stephenson, M.D. located? ▼
William Stephenson, M.D. is located at 395 W BULLDOG BLVD STE 103, Provo, UT, 84604. Phone: (801) 357-8200.
What is William Stephenson, M.D.'s NPI number? ▼
William Stephenson, M.D.'s National Provider Identifier (NPI) is 1093787541, issued on 02/07/2006.
Does William Stephenson, M.D. prescribe more brand-name or generic drugs? ▼
William Stephenson, M.D.'s prescribing is 41% brand-name and 59% generic drugs by claim count, with $687K in brand drug costs.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,483 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 684 Medicare Part D claims per year.
What drugs does William Stephenson, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, William Stephenson, M.D.'s most frequently prescribed drugs include Calquence, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Stephenson, M.D. accept Medicare? ▼
William Stephenson, M.D. appears in CMS Medicare data with 162 Part D claims and 72 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Stephenson, M.D.'s credentials? ▼
William Stephenson, M.D.'s NPI is 1093787541 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.