Meghan O'Halloran, M.D.
NPI 1790006138 · Internal Medicine Physician · Maywood, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Meghan O'Halloran, M.D. is a Internal Medicine Physician provider in Maywood, IL (NPI 1790006138).
Provider details
- NPI number
- 1790006138
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 125058606 (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
16 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-21
- Last updated
- 2013-07-01
Frequently asked questions
- What is Meghan O'Halloran's NPI number?
- Meghan O'Halloran's National Provider Identifier (NPI) is 1790006138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Meghan O'Halloran's specialty?
- Meghan O'Halloran is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Meghan O'Halloran located?
- Meghan O'Halloran's practice location on file with NPPES is 2160 S 1st Ave Ofc 1011740, Maywood, IL 60153-3328.
- What is Meghan O'Halloran's phone number?
- The practice phone number listed in the NPPES registry for Meghan O'Halloran is (708) 216-6497.
- Does Meghan O'Halloran accept Medicare?
- Meghan O'Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Meghan O'Halloran's NPI active?
- Yes — Meghan O'Halloran's NPI (1790006138) is active in the NPPES registry as of the last update on 2013-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.