Marcelo Boek, M.D.
NPI 1134166788 · Hematology & Oncology Physician · Mcallen, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcelo Boek, M.D. is a Hematology & Oncology Physician provider in Mcallen, TX (NPI 1134166788).
Provider details
- NPI number
- 1134166788
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M2565 (TX)
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
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
3,671 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 | 482 | $122 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 454 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 405 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 379 | $10 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 176 | $120 |
| Lactate Dehydrogenase (enzyme) Level83615 | 158 | $6 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 162 | 52 |
| Alendronate Sodium | 126 | 38 |
| Levothyroxine Sodium | 105 | 25 |
| Dexamethasone | 89 | 36 |
| Prednisone | 84 | 20 |
| Ondansetronbrand: Ondansetron Odt | 76 | 45 |
| Tamoxifen Citrate | 68 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$906 across 27 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
- 2006-06-01
- Last updated
- 2008-03-07
Frequently asked questions
- What is Marcelo Boek's NPI number?
- Marcelo Boek's National Provider Identifier (NPI) is 1134166788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcelo Boek's specialty?
- Marcelo Boek is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marcelo Boek located?
- Marcelo Boek's practice location on file with NPPES is 1901 S 2nd St, Mcallen, TX 78503-1271.
- What is Marcelo Boek's phone number?
- The practice phone number listed in the NPPES registry for Marcelo Boek is (956) 687-5150.
- Does Marcelo Boek accept Medicare?
- Marcelo Boek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcelo Boek's NPI active?
- Yes — Marcelo Boek's NPI (1134166788) is active in the NPPES registry as of the last update on 2008-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.