John Cassidy, M.D.
NPI 1356388342 · Cardiovascular Disease Physician · Tulsa, OK
John Cassidy, M.D. is a Cardiovascular Disease Physician provider in Tulsa, OK (NPI 1356388342).
Provider details
- NPI number
- 1356388342
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18361 (OK)
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
- 2006-05-31
- Last updated
- 2008-03-18
Frequently asked questions
- What is John Cassidy's NPI number?
- John Cassidy's National Provider Identifier (NPI) is 1356388342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Cassidy's specialty?
- John Cassidy is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Cassidy located?
- John Cassidy's practice location on file with NPPES is 6151 S Yale Ave, Tulsa, OK 74136-1907.
- What is John Cassidy's phone number?
- The practice phone number listed in the NPPES registry for John Cassidy is (918) 494-8500.
- Is John Cassidy's NPI active?
- Yes — John Cassidy's NPI (1356388342) is active in the NPPES registry as of the last update on 2008-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.