John Nicholson, M.D.
NPI 1548550833 · Hematology & Oncology Physician · Huntsville, AL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nicholson, M.D. is a Hematology & Oncology Physician provider in Huntsville, AL (NPI 1548550833).
Provider details
- NPI number
- 1548550833
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32253 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
10,241 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,341 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,329 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 1,250 | $10 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 586 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 472 | $115 |
| Ferritin (blood Protein) Level82728 | 397 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 93 | 23 |
| Letrozole | 81 | 22 |
| Hydroxyurea | 63 | 13 |
| Apixabanbrand: Eliquis | 58 | 11 |
| Palbociclibbrand: Ibrance | 54 | — |
| Potassium Chloride | 45 | 21 |
| Ondansetron Hcl | 41 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,323 across 58 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)
- 380 Woods Cove Rd Ste BScottsboro, AL 35768-2428Phone: (256) 705-4224Fax: (256) 705-4135
Registry dates
- Enumerated
- 2011-04-08
- Last updated
- 2024-05-01
- Certified
- 2024-05-01
Frequently asked questions
- What is John Nicholson's NPI number?
- John Nicholson's National Provider Identifier (NPI) is 1548550833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nicholson's specialty?
- John Nicholson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Nicholson located?
- John Nicholson's practice location on file with NPPES is 3601 Cci Dr Nw, Huntsville, AL 35805-2606.
- What is John Nicholson's phone number?
- The practice phone number listed in the NPPES registry for John Nicholson is (256) 705-4224.
- Does John Nicholson accept Medicare?
- John Nicholson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nicholson's NPI active?
- Yes — John Nicholson's NPI (1548550833) is active in the NPPES registry as of the last update on 2024-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.