Ryan Zimmerman, D.O.
NPI 1861835241 · Internal Medicine Physician · West Reading, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Zimmerman, D.O. is a Internal Medicine Physician provider in West Reading, PA (NPI 1861835241).
Provider details
- NPI number
- 1861835241
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OT015116 (PA)
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
13 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
226 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) |
|---|---|---|
| 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 | 213 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 13 | $8 |
Typical Medicare-allowed amounts for these services range $8–$16 (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 · 143 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 822 | 246 |
| Amlodipine Besylate | 457 | 148 |
| Lisinopril | 393 | 127 |
| Losartan Potassium | 239 | 71 |
| Levothyroxine Sodium | 236 | 63 |
| Rosuvastatin Calcium | 228 | 73 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-16
- Last updated
- 2013-04-16
Frequently asked questions
- What is Ryan Zimmerman's NPI number?
- Ryan Zimmerman's National Provider Identifier (NPI) is 1861835241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Zimmerman's specialty?
- Ryan Zimmerman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Zimmerman located?
- Ryan Zimmerman's practice location on file with NPPES is 6th Avenue & Spruce Street, West Reading, PA 19611.
- What is Ryan Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Ryan Zimmerman is (484) 628-8470.
- Does Ryan Zimmerman accept Medicare?
- Ryan Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Zimmerman's NPI active?
- Yes — Ryan Zimmerman's NPI (1861835241) is active in the NPPES registry as of the last update on 2013-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.