Montaser Shaheen, M.D.
NPI 1801860168 · Hematology (Internal Medicine) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Montaser Shaheen, M.D. is a Hematology (Internal Medicine) Physician provider in San Antonio, TX (NPI 1801860168).
Provider details
- NPI number
- 1801860168
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47683 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,008 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 176 | $17 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 171 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 129 | $128 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 129 | $180 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 128 | $15 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cabozantinib S-Malatebrand: Cabometyx | 99 | 20 |
| Amlodipine Besylate | 36 | 13 |
| Methylprednisolone | 30 | 17 |
| Levothyroxine Sodium | 28 | 11 |
| Hydrocortisone | 23 | — |
| Anastrozole | 18 | — |
| Triamcinolone Acetonide | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-14
- Last updated
- 2022-12-01
- Certified
- 2022-12-01
Frequently asked questions
- What is Montaser Shaheen's NPI number?
- Montaser Shaheen's National Provider Identifier (NPI) is 1801860168, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Montaser Shaheen's specialty?
- Montaser Shaheen is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Montaser Shaheen located?
- Montaser Shaheen's practice location on file with NPPES is 7979 Wurzbach Rd Ste 2222, San Antonio, TX 78229-4427.
- What is Montaser Shaheen's phone number?
- The practice phone number listed in the NPPES registry for Montaser Shaheen is (210) 450-1143.
- Does Montaser Shaheen accept Medicare?
- Montaser Shaheen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Montaser Shaheen's NPI active?
- Yes — Montaser Shaheen's NPI (1801860168) is active in the NPPES registry as of the last update on 2022-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.