Spencer Ruben, DO
NPI 1669908711 · Family Medicine Physician · Tempe, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Ruben, DO is a Family Medicine Physician provider in Tempe, AZ (NPI 1669908711).
Provider details
- NPI number
- 1669908711
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 008512 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
45 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $123 |
Typical Medicare-allowed amounts for these services range $123–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 722 | 280 |
| Amlodipine Besylate | 515 | 183 |
| Lisinopril | 451 | 168 |
| Metformin Hcl | 344 | 124 |
| Losartan Potassium | 301 | 120 |
| Levothyroxine Sodium | 248 | 96 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-11
- Last updated
- 2025-12-11
- Certified
- 2025-12-11
Frequently asked questions
- What is Spencer Ruben's NPI number?
- Spencer Ruben's National Provider Identifier (NPI) is 1669908711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Ruben's specialty?
- Spencer Ruben is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Ruben located?
- Spencer Ruben's practice location on file with NPPES is 1920 E Baseline Rd, Tempe, AZ 85283-1595.
- What is Spencer Ruben's phone number?
- The practice phone number listed in the NPPES registry for Spencer Ruben is (800) 233-3264.
- Does Spencer Ruben accept Medicare?
- Spencer Ruben is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Ruben's NPI active?
- Yes — Spencer Ruben's NPI (1669908711) is active in the NPPES registry as of the last update on 2025-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.