James Riddleberger, M.D.
NPI 1114308277 · Family Medicine Physician · Portland, ME
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Riddleberger, M.D. is a Family Medicine Physician provider in Portland, ME (NPI 1114308277).
Provider details
- NPI number
- 1114308277
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD22299 (ME)
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
11 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
360 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 83 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 77 | $95 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 43 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $64 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 41 | $53 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 38 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 375 | 108 |
| Lisinopril | 194 | 51 |
| Amlodipine Besylate | 136 | 42 |
| Gabapentin | 127 | 31 |
| Metoprolol Succinate | 117 | 32 |
| Losartan Potassium | 114 | 31 |
| Simvastatin | 114 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-15
- Last updated
- 2020-10-01
- Certified
- 2020-10-01
Frequently asked questions
- What is James Riddleberger's NPI number?
- James Riddleberger's National Provider Identifier (NPI) is 1114308277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Riddleberger's specialty?
- James Riddleberger is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Riddleberger located?
- James Riddleberger's practice location on file with NPPES is 331 Veranda St, Portland, ME 04103.
- What is James Riddleberger's phone number?
- The practice phone number listed in the NPPES registry for James Riddleberger is (207) 828-2402.
- Does James Riddleberger accept Medicare?
- James Riddleberger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Riddleberger's NPI active?
- Yes — James Riddleberger's NPI (1114308277) is active in the NPPES registry as of the last update on 2020-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.