Spencer Rittner, M.D.
NPI 1891107405 · Family Medicine Physician · Malden, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Rittner, M.D. is a Family Medicine Physician provider in Malden, MA (NPI 1891107405).
Provider details
- NPI number
- 1891107405
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 260297 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
394 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 | 128 | $140 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 85 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 63 | $141 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 61 | $9 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 25 | $21 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 131 | 39 |
| Levothyroxine Sodium | 87 | 21 |
| Rosuvastatin Calcium | 64 | 22 |
| Amlodipine Besylate | 55 | 19 |
| Lisinopril | 53 | 17 |
| Omeprazole | 52 | 20 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-30
- Last updated
- 2017-05-30
Frequently asked questions
- What is Spencer Rittner's NPI number?
- Spencer Rittner's National Provider Identifier (NPI) is 1891107405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Rittner's specialty?
- Spencer Rittner is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Rittner located?
- Spencer Rittner's practice location on file with NPPES is 195 Canal St, Malden, MA 02148-6701.
- What is Spencer Rittner's phone number?
- The practice phone number listed in the NPPES registry for Spencer Rittner is (781) 338-0500.
- Does Spencer Rittner accept Medicare?
- Spencer Rittner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Rittner's NPI active?
- Yes — Spencer Rittner's NPI (1891107405) is active in the NPPES registry as of the last update on 2017-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.