Carmen Perez-Masuelli, M.D.,
NPI 1770557795 · Rheumatology Physician · Shenandoah, TX
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carmen Perez-Masuelli, M.D., is a Rheumatology Physician provider in Shenandoah, TX (NPI 1770557795).
Provider details
- NPI number
- 1770557795
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,
- Sex
- Female
- Sole proprietor
- No
- License
- L0506 (TX)
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
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
2,892 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 | 623 | $130 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 552 | $128 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 521 | $72 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 315 | $28 |
| 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 | 198 | $17 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 182 | 81 |
| Hydroxychloroquine Sulfate | 132 | 48 |
| Prednisone | 111 | 47 |
| Gabapentin | 104 | 38 |
| Duloxetine Hcl | 97 | 44 |
| Leflunomide | 90 | 42 |
| Tramadol Hcl | 70 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,822 across 90 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
- 2006-02-15
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Carmen Perez-Masuelli's NPI number?
- Carmen Perez-Masuelli's National Provider Identifier (NPI) is 1770557795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carmen Perez-Masuelli's specialty?
- Carmen Perez-Masuelli is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Carmen Perez-Masuelli located?
- Carmen Perez-Masuelli's practice location on file with NPPES is 129 Vision Park Blvd Ste 206, Shenandoah, TX 77384-3024.
- What is Carmen Perez-Masuelli's phone number?
- The practice phone number listed in the NPPES registry for Carmen Perez-Masuelli is (281) 315-8130.
- Does Carmen Perez-Masuelli accept Medicare?
- Carmen Perez-Masuelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carmen Perez-Masuelli's NPI active?
- Yes — Carmen Perez-Masuelli's NPI (1770557795) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.