Margaret Ruth Spencer, NP
Family Nurse Practitioner · Tucson, AZ
Margaret Ruth Spencer, NP is a family nurse practitioner with a practice address in Tucson, Arizona, and NPI 1124690979, issued on Jul 12, 2021. Check the license (Arizona 244857, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Ruth Spencer
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 244857 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1707 W Saint Marys RD Ste 275, Tucson, AZ 85745
- Phone
- (520) 276-2270
- Enumerated
- Jul 12, 2021
- Record last updated
- Jul 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211119001508); 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 1707 W Saint Marys RD Ste 275
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lata Aluri, MDHematology & Oncology Physician1467581736
- Blythe Demello, DNPCritical Care Medicine Registered Nurse1558002675
Verify Margaret Ruth Spencer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 244857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,073 Medicare Part D claims for 260 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims. 78 claims were for opioids.
Most prescribed
- Anastrozole174 claims
- Eliquis75 claims
- Ondansetron Odt58 claims
- Abiraterone Acetate50 claims
- Xarelto46 claims
- Oxycodone Hcl45 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: $4,054.49
206 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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.
Bills Medicare through one group practice
- The Oncology Institute CA, A Professional CorporationTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Ruth Spencer among 5,933 family nurse practitioner records in Arizona
Margaret Ruth Spencer, NP 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 2021, is newer than 66% of them.
- NPI issued2021 · 66% of these records are older, 27% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2019 among the 3,510 with a school on file
- Record last updated2021 · 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).
907 family nurse practitioner records list a practice address in Tucson
They are 907 of the 18,788 NPPES records with a practice address in Tucson, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Tucson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Alicia Aguilar, FNP-CTucson, AZ 857451982888962
- Deane Apperson, F.N.P.Tucson, AZ 857451902885932
- Kane Gronback, APRNTucson, AZ 857451356789226
- Dulce Hammett, FNPTucson, AZ 857451235475732
- Rose Harris, FNPTucson, AZ 857451497175293
- Tab Hoyt, FNPTucson, AZ 857451174666564
- Sherrie Kelly, FNPTucson, AZ 857451134315070
- Mary Leitner, FNPTucson, AZ 857451730161829
Common questions
What is Margaret Ruth Spencer, NP's NPI number?
Margaret Ruth Spencer, NP's National Provider Identifier (NPI) is 1124690979, issued on Jul 12, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Ruth Spencer, NP located?
The NPPES record lists a practice address at 1707 W Saint Marys RD Ste 275, Tucson, AZ, 85745. Phone: (520) 276-2270. Providers update this record themselves, so call before visiting.
How can I verify Margaret Ruth Spencer, NP's license?
NPPES lists Arizona license number 244857, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Ruth Spencer, NP prescribe under Medicare Part D?
In 2024, Margaret Ruth Spencer, NP had 1,073 Medicare Part D claims for 260 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.