Spencer Ruben, DO
Family Medicine Physician · Tempe, AZ
Spencer Ruben, DO is a family medicine physician with a practice address in Tempe, Arizona, and NPI 1669908711, issued on May 11, 2017. Check the license (Arizona 008512, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Spencer Ruben
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 008512 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1920 E Baseline RD, Tempe, AZ 85283
- Phone
- (800) 233-3264
- Enumerated
- May 11, 2017
- Record last updated
- Dec 11, 2025
- Fax
- (602) 232-9665
- Medicare enrollment
- Enrolled (PECOS I20200723003118); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 1920 E Baseline RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olubukola Aremu, FNP-CFamily Nurse Practitioner1376901199
- John Castro, MDFamily Medicine Physician1619953577
- Swapna Chalasani, MDInternal Medicine Physician1407067010
- Darren ClontsPharmacist1568884898
- Bruce Curtis, M.D.Diagnostic Radiology Physician1073539029
- Julie Desoe, APRNFamily Nurse Practitioner1275798464
Verify Spencer Ruben in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 008512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family medicine physician in 2024
7,565 Medicare Part D claims for 918 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium722 claims
- Amlodipine Besylate515 claims
- Lisinopril451 claims
- Metformin Hcl344 claims
- Losartan Potassium301 claims
- Levothyroxine Sodium248 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
- Honorhealth Medical Group, LLCTempe, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Ruben among 3,119 family medicine physician records in Arizona
Spencer Ruben, DO is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2017 · median 2006 among the 1,775 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
70 family medicine physician records list a practice address in Tempe
They are 70 of the 4,310 NPPES records with a practice address in Tempe, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Tempe → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Daniel Aguila, MDGuadalupe, AZ 852831215980107
- Joseph Alia, D.O.Tempe, AZ 852831265424584
- John Castro, MDTempe, AZ 852831619953577
- Enrique Cifuentes, Jr., MDTempe, AZ 852831598804510
- Todd Dreitzler, M.D.Tempe, AZ 852831063641686
- Gregory Ellison, M.D.Tempe, AZ 852831669567434
- Saquib Hamid, MDTempe, AZ 852831811181761
- Anna Lupa, MDTempe, AZ 852831346210846
Common questions
What is Spencer Ruben, DO's NPI number?
Spencer Ruben, DO's National Provider Identifier (NPI) is 1669908711, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Ruben, DO located?
The NPPES record lists a practice address at 1920 E Baseline RD, Tempe, AZ, 85283. Phone: (800) 233-3264. Providers update this record themselves, so call before visiting.
How can I verify Spencer Ruben, DO's license?
NPPES lists Arizona license number 008512, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer Ruben, DO prescribe under Medicare Part D?
In 2024, Spencer Ruben, DO had 7,565 Medicare Part D claims for 918 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.