Donna Timchak, MD
NPI 1689641623 · Pediatric Cardiology Physician · Morristown, NJ
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donna Timchak, MD is a Pediatric Cardiology Physician provider in Morristown, NJ (NPI 1689641623).
Provider details
- NPI number
- 1689641623
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA05469800 (NJ)
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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 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 (4)
- 55 Madison Ave Fl 2Morristown, NJ 07960-7337Phone: (973) 971-5996Fax: (973) 290-7979
- 55 Madison Ave Fl 1Morristown, NJ 07960-7337Phone: (973) 971-7520Fax: (973) 267-4165
- 11 Overlook Rd Ste 230Summit, NJ 07901-3580Phone: (973) 971-5996Fax: (973) 290-7979
- 99 Beauvoir AveSummit, NJ 07901-3533Phone: (973) 971-5996Fax: (973) 290-7979
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is Donna Timchak's NPI number?
- Donna Timchak's National Provider Identifier (NPI) is 1689641623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donna Timchak's specialty?
- Donna Timchak is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Donna Timchak located?
- Donna Timchak's practice location on file with NPPES is 100 Madison Ave, Morristown, NJ 07960-6136.
- What is Donna Timchak's phone number?
- The practice phone number listed in the NPPES registry for Donna Timchak is (973) 971-5996.
- Does Donna Timchak accept Medicare?
- Donna Timchak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donna Timchak's NPI active?
- Yes — Donna Timchak's NPI (1689641623) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.