Patrick Callaghan, DO
NPI 1225563489 · Internal Medicine Physician · Allentown, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Callaghan, DO is a Internal Medicine Physician provider in Allentown, PA (NPI 1225563489).
Provider details
- NPI number
- 1225563489
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS020685 (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
9 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
703 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 328 | $78 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 127 | $171 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 103 | $113 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 102 | $118 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 17 | $129 |
| Advance Care Planning, First 30 Minutes99497 | 15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 19 | 16 |
| Prednisone | 19 | 19 |
| Oxycodone Hcl | 15 | 15 |
| Apixabanbrand: Eliquis | 13 | 12 |
| Pantoprazole Sodium | 13 | 13 |
| Furosemide | 12 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-25
- Last updated
- 2025-08-11
- Certified
- 2025-08-11
Frequently asked questions
- What is Patrick Callaghan's NPI number?
- Patrick Callaghan's National Provider Identifier (NPI) is 1225563489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Callaghan's specialty?
- Patrick Callaghan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Callaghan located?
- Patrick Callaghan's practice location on file with NPPES is 1736 Hamilton St, Allentown, PA 18104-5656.
- What is Patrick Callaghan's phone number?
- The practice phone number listed in the NPPES registry for Patrick Callaghan is (484) 526-6643.
- Does Patrick Callaghan accept Medicare?
- Patrick Callaghan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Callaghan's NPI active?
- Yes — Patrick Callaghan's NPI (1225563489) is active in the NPPES registry as of the last update on 2025-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.