Nathan Ostler, FNP-C
Family Nurse Practitioner · Mesa, AZ
Nathan Ostler, FNP-C is a family nurse practitioner with a practice address in Mesa, Arizona, and NPI 1023412301, issued on Oct 15, 2014. Check the license (Arizona AP7346, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathan Ostler
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP7346 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4111 E Auto Valley Drive, Mesa, AZ 85206
- Phone
- (480) 939-3409
- Enumerated
- Oct 15, 2014
- Record last updated
- Jul 6, 2023
- Fax
- (703) 634-7483
- Medicaid ID
- 960757 AZ
- Medicare enrollment
- Enrolled (PECOS I20141111002002); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Verify Nathan Ostler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license AP7346Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,159 Medicare Part D claims for 136 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Levothyroxine Sodium68 claims
- Losartan Potassium43 claims
- Atorvastatin Calcium41 claims
- Gabapentin35 claims
- Rosuvastatin Calcium32 claims
- Amlodipine Besylate31 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.
Bills Medicare through one group practice
- Healthcare Delivered LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Ostler among 5,933 family nurse practitioner records in Arizona
Nathan Ostler, 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 2014, is newer than 27% of them.
- NPI issued2014 · 27% of these records are older, 69% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2014 · median 2019 among the 3,510 with a school on file
- Record last updated2023 · 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).
391 family nurse practitioner records list a practice address in Mesa
They are 391 of the 9,151 NPPES records with a practice address in Mesa, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Mesa → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Laurie Ahrendt, FNPMesa, AZ 852061881813186
- Alene Frycek, NPMesa, AZ 852061205866902
- Candice Gaitanis, CFNP, ARNPMesa, AZ 852061750629572
- Helen Hayden, FNP-CMesa, AZ 852061700161791
- Nicole Holthouse, FNP-CMesa, AZ 852061548397748
- Kathleen McBride, CRNA, FNPMesa, AZ 852061336344514
- Tina Menghe, FNP-BCMesa, AZ 852061235343120
- Judith Newell, FNP-BCMesa, AZ 852061134140064
Common questions
What is Nathan Ostler, FNP-C's NPI number?
Nathan Ostler, FNP-C's National Provider Identifier (NPI) is 1023412301, issued on Oct 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Ostler, FNP-C located?
The NPPES record lists a practice address at 4111 E Auto Valley Drive, Mesa, AZ, 85206. Phone: (480) 939-3409. Providers update this record themselves, so call before visiting.
How can I verify Nathan Ostler, FNP-C's license?
NPPES lists Arizona license number AP7346, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Nathan Ostler, FNP-C prescribe under Medicare Part D?
In 2024, Nathan Ostler, FNP-C had 1,159 Medicare Part D claims for 136 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.