John Donnelly, MD
NPI 1821064064 · Internal Medicine Physician · Newark, DE
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Donnelly, MD is a Internal Medicine Physician provider in Newark, DE (NPI 1821064064).
Provider details
- NPI number
- 1821064064
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C10006226 (DE)
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
272 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 88 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 70 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $95 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 20 | $48 |
| Hospital Discharge Day Management, 30 Minutes Or Less |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-27
- Last updated
- 2011-08-02
Frequently asked questions
- What is John Donnelly's NPI number?
- John Donnelly's National Provider Identifier (NPI) is 1821064064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Donnelly's specialty?
- John Donnelly is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Donnelly located?
- John Donnelly's practice location on file with NPPES is 200 Hygeia Dr, Newark, DE 19713-2049.
- What is John Donnelly's phone number?
- The practice phone number listed in the NPPES registry for John Donnelly is (302) 623-0100.
- Does John Donnelly accept Medicare?
- John Donnelly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Donnelly's NPI active?
- Yes — John Donnelly's NPI (1821064064) is active in the NPPES registry as of the last update on 2011-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.