Daniel Halloran, MD
NPI 1255081113 · Family Medicine Physician · Berwyn, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Halloran, MD is a Family Medicine Physician provider in Berwyn, IL (NPI 1255081113).
Provider details
- NPI number
- 1255081113
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125.080488 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 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 | 30 | 14 |
| Metformin Hcl | 18 | — |
| Omeprazole | 18 | — |
| Hydrochlorothiazide | 17 | — |
| Amlodipine Besylate | 15 | — |
| Gabapentin | 15 | — |
| Irbesartan | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-24
- Last updated
- 2022-06-02
- Certified
- 2022-06-02
Frequently asked questions
- What is Daniel Halloran's NPI number?
- Daniel Halloran's National Provider Identifier (NPI) is 1255081113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Halloran's specialty?
- Daniel Halloran is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Halloran located?
- Daniel Halloran's practice location on file with NPPES is 3249 S Oak Park Ave, Berwyn, IL 60402-3429.
- What is Daniel Halloran's phone number?
- The practice phone number listed in the NPPES registry for Daniel Halloran is (708) 783-2000.
- Does Daniel Halloran accept Medicare?
- Daniel Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Halloran's NPI active?
- Yes — Daniel Halloran's NPI (1255081113) is active in the NPPES registry as of the last update on 2022-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.