Martha Castro, PA-C
NPI 1104143056 · Physician Assistant · Bronx, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Castro, PA-C is a Physician Assistant provider in Bronx, NY (NPI 1104143056).
Provider details
- NPI number
- 1104143056
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 013991 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
625 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 | 312 | $124 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 193 | $128 |
| Ultrasonic Guidance for Needle Placement76942 | 40 | $56 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $88 |
| Injection of Trigger Points, 1-2 Muscles20552 | 28 | $50 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 43 | 18 |
| Baclofen | 27 | — |
| Tramadol Hcl | 17 | 11 |
| Lidocaine | 15 | — |
| Cyclobenzaprine Hcl | 12 | — |
| Methylprednisolone | 12 | 12 |
| Tizanidine Hcl | 12 | 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 , 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.
$114 across 5 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
- 2010-04-30
- Last updated
- 2013-08-22
Frequently asked questions
- What is Martha Castro's NPI number?
- Martha Castro's National Provider Identifier (NPI) is 1104143056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Castro's specialty?
- Martha Castro is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Castro located?
- Martha Castro's practice location on file with NPPES is 1250 Waters Pl, Bronx, NY 10461-2720.
- What is Martha Castro's phone number?
- The practice phone number listed in the NPPES registry for Martha Castro is (718) 652-0003.
- Does Martha Castro accept Medicare?
- Martha Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Castro's NPI active?
- Yes — Martha Castro's NPI (1104143056) is active in the NPPES registry as of the last update on 2013-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.