Martha Zer, FNP
NPI 1104435924 · Family Nurse Practitioner · South Padre Island, TX
Martha Zer, FNP is a Family Nurse Practitioner provider in South Padre Island, TX (NPI 1104435924).
Provider details
- NPI number
- 1104435924
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP144283 (TX)
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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Lactulose | 13 |
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 no Part D record, 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.
Practice location
Mailing address
Additional practice locations (2)
- 425 E Los Ebanos Blvd Ste 100Brownsville, TX 78520-8482Phone: (956) 546-3116
- 3808 Padre BlvdSouth Padre Island, TX 78597-7004Phone: (956) 761-3996
Registry dates
- Enumerated
- 2020-07-28
- Last updated
- 2023-06-26
- Certified
- 2023-06-26
Frequently asked questions
- What is Martha Zer's NPI number?
- Martha Zer's National Provider Identifier (NPI) is 1104435924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Zer's specialty?
- Martha Zer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Zer located?
- Martha Zer's practice location on file with NPPES is 4405 Padre Blvd, South Padre Island, TX 78597-7324.
- What is Martha Zer's phone number?
- The practice phone number listed in the NPPES registry for Martha Zer is (956) 433-6297.
- Is Martha Zer's NPI active?
- Yes — Martha Zer's NPI (1104435924) is active in the NPPES registry as of the last update on 2023-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.