William Blum, M.D.
NPI 1013922863 · Hematology & Oncology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Hematopoietic Cell Transplantation and Cellular Therapy · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Blum, M.D. is a Hematology & Oncology Physician provider in Atlanta, GA (NPI 1013922863).
Provider details
- NPI number
- 1013922863
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35083044 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
234 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $98 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $145 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 31 | $119 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 24 | $182 |
Typical Medicare-allowed amounts for these services range $76–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ruxolitinib Phosphatebrand: Jakafi | 93 | 14 |
| Valacyclovir Hclbrand: Valacyclovir | 92 | 24 |
| Venetoclaxbrand: Venclexta | 50 | 14 |
| Dasatinibbrand: Sprycel | 37 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 35 | 15 |
| Prednisone | 32 | 14 |
| Levofloxacin | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$110 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 320 W 10th AveB310 Starling Loving HallColumbus, OH 43210-1280Phone: (614) 293-9165Fax: (614) 293-7526
Registry dates
- Enumerated
- 2006-07-30
- Last updated
- 2022-07-21
Frequently asked questions
- What is William Blum's NPI number?
- William Blum's National Provider Identifier (NPI) is 1013922863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Blum's specialty?
- William Blum is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is William Blum located?
- William Blum's practice location on file with NPPES is 1365 Clifton Rd Ne Bldg C, Atlanta, GA 30322-1280.
- What is William Blum's phone number?
- The practice phone number listed in the NPPES registry for William Blum is (404) 778-7408.
- Does William Blum accept Medicare?
- William Blum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Blum's NPI active?
- Yes — William Blum's NPI (1013922863) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.