Samir Ambrale, MD
NPI 1780990382 · Hematology & Oncology Physician · Tamuning, GU
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samir Ambrale, MD is a Hematology & Oncology Physician provider in Tamuning, GU (NPI 1780990382).
Provider details
- NPI number
- 1780990382
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M-1954 (GU)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,722 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 | 479 | $129 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 305 | $15 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 178 | $16 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 166 | $140 |
| Administration of Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96402 | 151 | $38 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 91 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Anastrozole | 24 |
| Exemestane | 17 |
| Osimertinib Mesylatebrand: Tagrisso | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$141 across 3 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
- 2010-08-20
- Last updated
- 2016-12-30
Frequently asked questions
- What is Samir Ambrale's NPI number?
- Samir Ambrale's National Provider Identifier (NPI) is 1780990382, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samir Ambrale's specialty?
- Samir Ambrale is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Samir Ambrale located?
- Samir Ambrale's practice location on file with NPPES is 548 Marine Corps Dr, Tamuning, GU 96913.
- What is Samir Ambrale's phone number?
- The practice phone number listed in the NPPES registry for Samir Ambrale is (671) 646-5825.
- Does Samir Ambrale accept Medicare?
- Samir Ambrale is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samir Ambrale's NPI active?
- Yes — Samir Ambrale's NPI (1780990382) is active in the NPPES registry as of the last update on 2016-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.