Sara Buck Geisinger, DNP, AGNP-C
Nurse Practitioner · Phoenix, AZ
Sara Buck Geisinger, DNP, AGNP-C is a nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1922848662, issued on May 30, 2024. Check the license (Arizona 308015, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sara Buck Geisinger
- Credential
- DNP, AGNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 308015 AZ
RN215739 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 240 W Thomas RD # 301, Phoenix, AZ 85013
- Phone
- (602) 406-6262
- Enumerated
- May 30, 2024
- Record last updated
- May 22, 2025
- Fax
- (602) 406-6261
- Medicare enrollment
- Enrolled (PECOS I20240827002025); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,423 in Arizona → Look up another NPI →
Also registered at 240 W Thomas RD # 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sara Buck Geisinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 308015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average nurse practitioner in 2024
150 Medicare Part D claims for 74 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl28 claims
- Memantine Hcl19 claims
- Quetiapine Fumarate13 claims
- Rivastigmine12 claims
- Divalproex Sodium11 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
- Sjhmc Physician ServicesPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Buck Geisinger among 1,423 nurse practitioner records in Arizona
Sara Buck Geisinger, DNP, AGNP-C is one of 1,423 nurse practitioner records with a practice address in Arizona. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 86% of them.
- NPI issued2024 · 86% of these records are older, 8% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2024 · median 2019 among the 805 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Arizona
There are 1,423 nurse practitioner records in Arizona.
All 1,423 in Arizona → Every provider in Phoenix → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Dorothy Doolittle, PNPPhoenix, AZ 850131619045754
- James EilersPhoenix, AZ 850131982287728
- Luisa Elizalde, NP-CPhoenix, AZ 850131942485990
- Lauren HarveyPhoenix, AZ 850131699375329
- Jennal Johnson, FNPPhoeneix, AZ 850131326058959
- Karen Jones, NPPhoenix, AZ 850131760414601
- Katherine Kenny, ANPPhoenix, AZ 850131093701583
- Merle Palencia, NPPhoenix, AZ 850131023171840
Common questions
What is Sara Buck Geisinger, DNP, AGNP-C's NPI number?
Sara Buck Geisinger, DNP, AGNP-C's National Provider Identifier (NPI) is 1922848662, issued on May 30, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Sara Buck Geisinger, DNP, AGNP-C located?
The NPPES record lists a practice address at 240 W Thomas RD # 301, Phoenix, AZ, 85013. Phone: (602) 406-6262. Providers update this record themselves, so call before visiting.
How can I verify Sara Buck Geisinger, DNP, AGNP-C's license?
NPPES lists Arizona license number 308015, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Sara Buck Geisinger, DNP, AGNP-C prescribe under Medicare Part D?
In 2024, Sara Buck Geisinger, DNP, AGNP-C had 150 Medicare Part D claims for 74 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.