Samuel Friedman, M.D.
NPI 1891747069 · Hematology & Oncology Physician · Tamuning, GU
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Friedman, M.D. is a Hematology & Oncology Physician provider in Tamuning, GU (NPI 1891747069).
Provider details
- NPI number
- 1891747069
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M001476 (GU)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,383 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 | 1,249 | $92 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 473 | $16 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 262 | $141 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 219 | $15 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 176 | $29 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 170 | $66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 104 | 18 |
| Abiraterone Acetate | 77 | — |
| Dexamethasone | 67 | 12 |
| Allopurinol | 59 | 12 |
| Atorvastatin Calcium | 56 | 12 |
| Losartan Potassium | 45 | — |
| Metformin Hcl | 40 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33 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
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2017-04-26
Frequently asked questions
- What is Samuel Friedman's NPI number?
- Samuel Friedman's National Provider Identifier (NPI) is 1891747069, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Friedman's specialty?
- Samuel Friedman is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Friedman located?
- Samuel Friedman's practice location on file with NPPES is Guam Medical Plaza, Tamuning, GU 96913-3194.
- What is Samuel Friedman's phone number?
- The practice phone number listed in the NPPES registry for Samuel Friedman is (671) 647-4656.
- Does Samuel Friedman accept Medicare?
- Samuel Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Friedman's NPI active?
- Yes — Samuel Friedman's NPI (1891747069) is active in the NPPES registry as of the last update on 2017-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.