John Grunyk, MD
NPI 1871053744 · Pediatric Critical Care Medicine Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Grunyk, MD is a Pediatric Critical Care Medicine Physician provider in Atlanta, GA (NPI 1871053744).
Provider details
- NPI number
- 1871053744
- Entity type
- Individual
- Primary specialty
- Pediatric Critical Care Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 104763 (GA)
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 725 Welch RdPalo Alto, CA 94304-1601Phone: (650) 497-8000
- 225 E Chicago AveChicago, IL 60611-2991Phone: (312) 227-4000
Registry dates
- Enumerated
- 2019-03-25
- Last updated
- 2025-08-31
- Certified
- 2025-08-31
Frequently asked questions
- What is John Grunyk's NPI number?
- John Grunyk's National Provider Identifier (NPI) is 1871053744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Grunyk's specialty?
- John Grunyk is listed in the NPPES registry with a primary specialty of Pediatric Critical Care Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Grunyk located?
- John Grunyk's practice location on file with NPPES is 2220 N Druid Hills Rd Ne, Atlanta, GA 30329-3117.
- What is John Grunyk's phone number?
- The practice phone number listed in the NPPES registry for John Grunyk is (404) 785-2344.
- Does John Grunyk accept Medicare?
- John Grunyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Grunyk's NPI active?
- Yes — John Grunyk's NPI (1871053744) is active in the NPPES registry as of the last update on 2025-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.