Mark Butterly, M.D.
NPI 1366559072 · Pediatrics Physician · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Butterly, M.D. is a Pediatrics Physician provider in Oak Lawn, IL (NPI 1366559072).
Provider details
- NPI number
- 1366559072
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-111074 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-25
- Last updated
- 2022-05-17
- Certified
- 2022-05-17
Frequently asked questions
- What is Mark Butterly's NPI number?
- Mark Butterly's National Provider Identifier (NPI) is 1366559072, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Butterly's specialty?
- Mark Butterly is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Butterly located?
- Mark Butterly's practice location on file with NPPES is 4440 W 95th St Ste 2177h, Oak Lawn, IL 60453-2600.
- What is Mark Butterly's phone number?
- The practice phone number listed in the NPPES registry for Mark Butterly is (708) 684-5341.
- Does Mark Butterly accept Medicare?
- Mark Butterly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Butterly's NPI active?
- Yes — Mark Butterly's NPI (1366559072) is active in the NPPES registry as of the last update on 2022-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.