Tammy Castro, ARNP
NPI 1164665972 · Family Nurse Practitioner · St Petersburg, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Castro, ARNP is a Family Nurse Practitioner provider in St Petersburg, FL (NPI 1164665972).
Provider details
- NPI number
- 1164665972
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 363LF0000X (FL)
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
17 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
523 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) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 346 | $63 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 161 | $37 |
| Residence Visit for New Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99342 | 16 | $65 |
Typical Medicare-allowed amounts for these services range $37–$65 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,010 across 31 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
- 2009-04-08
- Last updated
- 2010-01-15
Frequently asked questions
- What is Tammy Castro's NPI number?
- Tammy Castro's National Provider Identifier (NPI) is 1164665972, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Castro's specialty?
- Tammy Castro is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Castro located?
- Tammy Castro's practice location on file with NPPES is 1839 Central Ave, St Petersburg, FL 33713-8900.
- What is Tammy Castro's phone number?
- The practice phone number listed in the NPPES registry for Tammy Castro is (727) 322-1054.
- Does Tammy Castro accept Medicare?
- Tammy Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Castro's NPI active?
- Yes — Tammy Castro's NPI (1164665972) is active in the NPPES registry as of the last update on 2010-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.