IndividualActive
John O Connor, MD
NPI 1407933575 · Surgery Physician · Rockville, MD
John O Connor, MD is a Surgery Physician provider in Rockville, MD (NPI 1407933575).
Provider details
- NPI number
- 1407933575
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D09499 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
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
11125 Rockville Pike
Ste. 308
Rockville, MD 20852-3142
Phone: (301) 881-5167
Fax: (301) 816-9576
Approximate (ZIP-level) locationGet directions
Mailing address
Po Box 341589
West Bethesda, MD 20827-1589
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2008-03-19
Frequently asked questions
- What is John O Connor's NPI number?
- John O Connor's National Provider Identifier (NPI) is 1407933575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John O Connor's specialty?
- John O Connor is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John O Connor located?
- John O Connor's practice location on file with NPPES is 11125 Rockville Pike, Rockville, MD 20852-3142.
- What is John O Connor's phone number?
- The practice phone number listed in the NPPES registry for John O Connor is (301) 881-5167.
- Is John O Connor's NPI active?
- Yes — John O Connor's NPI (1407933575) is active in the NPPES registry as of the last update on 2008-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.