William Loretan, DO
NPI 1245244565 · Internal Medicine Physician · Ephrata, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Loretan, DO is a Internal Medicine Physician provider in Ephrata, PA (NPI 1245244565).
Provider details
- NPI number
- 1245244565
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OS007344E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,657 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 | 869 | $121 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 623 | $102 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 225 | $122 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 215 | $172 |
| 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 | 135 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 243 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 1,063 | 244 |
| Levothyroxine Sodium | 1,053 | 191 |
| Atorvastatin Calcium | 1,049 | 235 |
| Furosemide | 751 | 160 |
| Losartan Potassium | 686 | 157 |
| Lisinopril | 678 | 155 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-29
- Last updated
- 2022-04-22
- Certified
- 2022-04-22
Frequently asked questions
- What is William Loretan's NPI number?
- William Loretan's National Provider Identifier (NPI) is 1245244565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Loretan's specialty?
- William Loretan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Loretan located?
- William Loretan's practice location on file with NPPES is 446 N Reading Rd, Ephrata, PA 17522-9802.
- What is William Loretan's phone number?
- The practice phone number listed in the NPPES registry for William Loretan is (717) 733-6546.
- Does William Loretan accept Medicare?
- William Loretan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Loretan's NPI active?
- Yes — William Loretan's NPI (1245244565) is active in the NPPES registry as of the last update on 2022-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.