John Mamalakis, M.D.
NPI 1780726661 · Anesthesiology Physician · Elmhurst, IL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mamalakis, M.D. is a Anesthesiology Physician provider in Elmhurst, IL (NPI 1780726661).
Provider details
- NPI number
- 1780726661
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 45807 (WI)
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 725 American AveWaukesha, WI 53188-5031Phone: (262) 544-2011
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2024-09-17
- Certified
- 2024-09-11
Frequently asked questions
- What is John Mamalakis's NPI number?
- John Mamalakis's National Provider Identifier (NPI) is 1780726661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mamalakis's specialty?
- John Mamalakis is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mamalakis located?
- John Mamalakis's practice location on file with NPPES is 155 E. Bush Hill Rd., Elmhurst, IL 60126-5658.
- What is John Mamalakis's phone number?
- The practice phone number listed in the NPPES registry for John Mamalakis is (331) 221-3521.
- Does John Mamalakis accept Medicare?
- John Mamalakis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mamalakis's NPI active?
- Yes — John Mamalakis's NPI (1780726661) is active in the NPPES registry as of the last update on 2024-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.