John Ruddy, MD
NPI 1235190497 · Internal Medicine Physician · Cambridge, MN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Ruddy, MD is a Internal Medicine Physician provider in Cambridge, MN (NPI 1235190497).
Provider details
- NPI number
- 1235190497
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 46279 (MN)
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
20 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
2,099 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 | 466 | $125 |
| 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 | 292 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 252 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 142 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 127 | $127 |
| 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 · 145 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 661 | 194 |
| Lisinopril | 545 | 147 |
| Amlodipine Besylate | 491 | 129 |
| Metoprolol Succinate | 424 | 123 |
| Levothyroxine Sodium | 374 | 104 |
| Losartan Potassium | 362 | 107 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2021-03-11
- Certified
- 2021-03-11
Frequently asked questions
- What is John Ruddy's NPI number?
- John Ruddy's National Provider Identifier (NPI) is 1235190497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ruddy's specialty?
- John Ruddy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Ruddy located?
- John Ruddy's practice location on file with NPPES is 701 Dellwood St S, Cambridge, MN 55008-1920.
- What is John Ruddy's phone number?
- The practice phone number listed in the NPPES registry for John Ruddy is (763) 689-8700.
- Does John Ruddy accept Medicare?
- John Ruddy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Ruddy's NPI active?
- Yes — John Ruddy's NPI (1235190497) is active in the NPPES registry as of the last update on 2021-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.