Josefina Castelo, FNP-C
Family Nurse Practitioner · Tempe, AZ
Josefina Castelo, FNP-C is a family nurse practitioner with a practice address in Tempe, Arizona, and NPI 1346613908, issued on Nov 4, 2015. Check the license (Arizona NP8261, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Josefina Castelo
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP8261 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2033 E Warner RD Ste 109, Tempe, AZ 85284
- Phone
- (480) 820-5525
- Enumerated
- Nov 4, 2015
- Record last updated
- Jul 21, 2022
- Fax
- (480) 831-6755
- Medicare enrollment
- Enrolled (PECOS I20151223000665); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Also registered at 2033 E Warner RD Ste 109
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Josefina Castelo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license NP8261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family nurse practitioner in 2024
133 Medicare Part D claims for 13 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Levothyroxine Sodium16 claims
- Atorvastatin Calcium12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $35.99
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Josefina Castelo among 5,933 family nurse practitioner records in Arizona
Josefina Castelo, FNP-C is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 31% of them.
- NPI issued2015 · 31% of these records are older, 64% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2015 · median 2019 among the 3,510 with a school on file
- Record last updated2022 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
148 family nurse practitioner records list a practice address in Tempe
They are 148 of the 4,310 NPPES records with a practice address in Tempe, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Tempe → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Debra Bartine, FNPTempe, AZ 852841174992580
- Diane Caruso, FNP-CTempe, AZ 852841144318817
- Mary Guerin, FNPTempe, AZ 852841699035246
- Sabrina Kibby, FNP-CTempe, AZ 852841508351826
- Mariana Lupea, FNPTempe, AZ 852841629553789
- Carrie Mattie, NPTempe, AZ 852841134465008
- Janet San George, FNP-CTempe, AZ 852841174659718
- Evelyn Tiu, NPTempe, AZ 852841083644173
Common questions
What is Josefina Castelo, FNP-C's NPI number?
Josefina Castelo, FNP-C's National Provider Identifier (NPI) is 1346613908, issued on Nov 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Josefina Castelo, FNP-C located?
The NPPES record lists a practice address at 2033 E Warner RD Ste 109, Tempe, AZ, 85284. Phone: (480) 820-5525. Providers update this record themselves, so call before visiting.
How can I verify Josefina Castelo, FNP-C's license?
NPPES lists Arizona license number NP8261, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Josefina Castelo, FNP-C prescribe under Medicare Part D?
In 2024, Josefina Castelo, FNP-C had 133 Medicare Part D claims for 13 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.