Martin Majer, M.D.
NPI 1376749234 · Hematology & Oncology Physician · Oroville, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Majer, M.D. is a Hematology & Oncology Physician provider in Oroville, CA (NPI 1376749234).
Provider details
- NPI number
- 1376749234
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A68238 (CA)
Specialties & taxonomies
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
18 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
265 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $92 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 88 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $130 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 13 | $135 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $177 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 48 | 18 |
| Ondansetronbrand: Ondansetron Odt | 21 | — |
| Hydroxyurea | 15 | — |
| Dexamethasone | 11 | — |
| Trametinib Dimethyl Sulfoxidebrand: Mekinist | 11 | — |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 11 | — |
| Eltrombopag Olaminebrand: Promacta | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,865 across 97 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)
- 350 Heritage Way Ste 1100Kalispell, MT 59901-3160Phone: (406) 752-8900Fax: (406) 752-8909
Registry dates
- Enumerated
- 2007-06-26
- Last updated
- 2024-02-19
- Certified
- 2024-02-19
Frequently asked questions
- What is Martin Majer's NPI number?
- Martin Majer's National Provider Identifier (NPI) is 1376749234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Majer's specialty?
- Martin Majer is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Martin Majer located?
- Martin Majer's practice location on file with NPPES is 2809 Olive Hwy, Oroville, CA 95966-6131.
- What is Martin Majer's phone number?
- The practice phone number listed in the NPPES registry for Martin Majer is (530) 538-3187.
- Does Martin Majer accept Medicare?
- Martin Majer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Majer's NPI active?
- Yes — Martin Majer's NPI (1376749234) is active in the NPPES registry as of the last update on 2024-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.