Jonathan Grayzel, MD
NPI 1679556534 · Emergency Medicine Physician · Worcester, MA
Jonathan Grayzel, MD is a Emergency Medicine Physician provider in Worcester, MA (NPI 1679556534).
Provider details
- NPI number
- 1679556534
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 210435 (MA)
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
20 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
- 2005-11-23
- Last updated
- 2011-07-29
Frequently asked questions
- What is Jonathan Grayzel's NPI number?
- Jonathan Grayzel's National Provider Identifier (NPI) is 1679556534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Grayzel's specialty?
- Jonathan Grayzel is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Grayzel located?
- Jonathan Grayzel's practice location on file with NPPES is 72 Pointe Rok Dr, Worcester, MA 01604-1467.
- What is Jonathan Grayzel's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Grayzel is (508) 334-1000.
- Is Jonathan Grayzel's NPI active?
- Yes — Jonathan Grayzel's NPI (1679556534) is active in the NPPES registry as of the last update on 2011-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.