NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1114912094 MD
Verify on CMS → W William Cox, MD
Hematology & Oncology Physician in Suite 1, Alaska.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,530 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
929
Medicare Part D claims · 145 beneficiaries · Hematology & Oncology Physician avg: 885
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$109.06
4 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
W William Cox, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 929 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 929
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥74th
- 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 W William Cox, MD
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 1114912094), first enumerated 09/15/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 929 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- 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
$109.06 in reported industry payments (4 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 1114912094 · Hematology & Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-NEUTRAL · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1114912094
- ENUM-LEGACY 2005
- TAX-MID 12K Hematology &
- MIPS-NEUTRAL 75/100
- RX-LIGHT 929
- BOOK-THIN 19 in Alaska
- PHOTO-ENUM Frederick Marquinez,… · 2005
W William Cox, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
929 ≥ 74th percentile 74% 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)
W William Cox, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 W William Cox, MD?
CMS neutral score, not measuredPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
929 5% vs specialty avg
MIPS final score
75/100
Specialty distribution in Alaska
How Hematology & Oncology Physician compares to other specialties among Alaska providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1114912094 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/15/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where W William Cox, MD 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.
Fairbanks Cancer Care Physicians PC
Fairbanks, AK
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 W William Cox, MD. Source: openpaymentsdata.cms.gov.
Total received
$109
Largest payer
AstraZeneca Pharmaceuticals LP
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
929
Total Claims
$3.2M
Total Drug Cost
145
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,351.2
- Total Day Supply
- 35,959
- Generic Drug Cost
- $568K
- Opioid Claims
- 22 (2.4% rate)
- Antibiotic Claims
- 41
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 2.28
- Gender Split
- 24% female / 76% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What W William Cox, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Abiraterone Acetate
Abiraterone Acetate
77 claims
- Prednisone
Prednisone
64 claims
- Ondansetron Odt
Ondansetron Odt
50 claims
- Pantoprazole Sodium
Pantoprazole Sodium
50 claims
- Prochlorperazine M…
Prochlorperazine Maleate
48 claims
- Acyclovir
Acyclovir
41 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
34 claims
- Lenalidomide
Lenalidomide
31 claims
| Drug | Claims |
|---|---|
| Abiraterone Acetate | 77 |
| Prednisone | 64 |
| Ondansetron Odt Ondansetron | 50 |
| Pantoprazole Sodium | 50 |
| Prochlorperazine Maleate | 48 |
| Acyclovir | 41 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 34 |
| Lenalidomide | 31 |
| Hydroxyurea | 29 |
| Dexamethasone | 26 |
* 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 W William Cox, MD fits within the Hematology & Oncology Physician landscape nationally.
11,530
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
885
Avg Claims per Provider
W William Cox, MD's 929 claims are above the specialty average of 885.
Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Cox, both outside Alaska so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology & Oncology Physician Providers in Alaska
Other clinicians with the same primary specialty enrolled in Alaska, drawn from the same CMS NPPES roster as Cox.
One of 19 Hematology & Oncology Physician providers enrolled in Alaska, 5 are shown here.
Dr. Charles Buess
MD
Anchorage, AK
Dr. Andrew Cap
MD, PHD
Glennallen, AK
Dr. Jacqueline Cox
MD
Fairbanks, AK
Dr. Susan Delgalvis
M.D.
Anchorage, AK
Dr. David Eilender
MD
Soldotna, AK
Compare Hematology & Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is W William Cox, MD's specialty? ▼
W William Cox, MD specializes in Hematology & Oncology Physician and practices in Suite 1, Alaska. Credentials: MD.
How much does W William Cox, MD prescribe under Medicare Part D? ▼
In 2024, W William Cox, MD wrote 929 Medicare Part D claims totaling $3.2M in drug costs for 145 beneficiaries.
What is W William Cox, MD's Medicare quality score? ▼
W William Cox, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is W William Cox, MD located? ▼
W William Cox, MD is located at 1640 COWLES ST, Suite 1, AK, 99701. Phone: (907) 452-4768.
What is W William Cox, MD's NPI number? ▼
W William Cox, MD's National Provider Identifier (NPI) is 1114912094, issued on 09/15/2005.
Does W William Cox, MD prescribe opioids? ▼
Yes, W William Cox, MD had 22 opioid claims in 2024 with an opioid prescribing rate of 2.4%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,530 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 885 Medicare Part D claims per year.
What drugs does W William Cox, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, W William Cox, MD's most frequently prescribed drugs include Abiraterone Acetate, Prednisone, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does W William Cox, MD accept Medicare? ▼
W William Cox, MD appears in CMS Medicare data with 929 Part D claims and 145 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify W William Cox, MD's credentials? ▼
W William Cox, MD's NPI is 1114912094 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.