Margaret Kelner, FNP
NPI 1366786394 · Family Nurse Practitioner · San Marcos, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Kelner, FNP is a Family Nurse Practitioner provider in San Marcos, TX (NPI 1366786394).
Provider details
- NPI number
- 1366786394
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 544490 (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 tenure25% of score
13 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
1,840 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) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 661 | $11 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 298 | $16 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 287 | $46 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 144 | $100 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 136 | $97 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 99 | $20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$449 across 23 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
- 2012-11-15
- Last updated
- 2012-11-15
Frequently asked questions
- What is Margaret Kelner's NPI number?
- Margaret Kelner's National Provider Identifier (NPI) is 1366786394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Kelner's specialty?
- Margaret Kelner is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Kelner located?
- Margaret Kelner's practice location on file with NPPES is 2406 Hunter Rd, San Marcos, TX 78666-5255.
- What is Margaret Kelner's phone number?
- The practice phone number listed in the NPPES registry for Margaret Kelner is (512) 396-7686.
- Does Margaret Kelner accept Medicare?
- Margaret Kelner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Kelner's NPI active?
- Yes — Margaret Kelner's NPI (1366786394) is active in the NPPES registry as of the last update on 2012-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.