Maria Zweig, M.D.
NPI 1356303549 · Specialist · San Juan, PR
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Zweig, M.D. is a Specialist provider in San Juan, PR (NPI 1356303549).
Provider details
- NPI number
- 1356303549
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- License
- 9131 (PR)
Specialties & taxonomies
Other Service Providers
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
411 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 251 | $116 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 78 | $31 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 43 | $118 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 20 | $164 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 19 | $64 |
Typical Medicare-allowed amounts for these services range $31–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 212 | 96 |
| Progesterone, Micronizedbrand: Progesterone | 125 | 22 |
| Alendronate Sodium | 82 | 30 |
| Metronidazole | 72 | 51 |
| Tolterodine Tartratebrand: Tolterodine Tartrate Er | 48 | 24 |
| Risedronate Sodium | 41 | 14 |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 32 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$150 across 2 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
- 2006-04-04
- Last updated
- 2022-07-21
Frequently asked questions
- What is Maria Zweig's NPI number?
- Maria Zweig's National Provider Identifier (NPI) is 1356303549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Zweig's specialty?
- Maria Zweig is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Maria Zweig located?
- Maria Zweig's practice location on file with NPPES is 4 Calle Rvdo Domingo Marrero, San Juan, PR 00925-2118.
- What is Maria Zweig's phone number?
- The practice phone number listed in the NPPES registry for Maria Zweig is (787) 759-6901.
- Does Maria Zweig accept Medicare?
- Maria Zweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Zweig's NPI active?
- Yes — Maria Zweig's NPI (1356303549) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.