John Krystal, M.D.
NPI 1336226240 · Psychiatry Physician · West Haven, CT
John Krystal, M.D. is a Psychiatry Physician provider in West Haven, CT (NPI 1336226240).
Provider details
- NPI number
- 1336226240
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 027473 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23,139 across 45 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2019-08-21
Frequently asked questions
- What is John Krystal's NPI number?
- John Krystal's National Provider Identifier (NPI) is 1336226240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Krystal's specialty?
- John Krystal is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Krystal located?
- John Krystal's practice location on file with NPPES is 950 Campbell Ave, West Haven, CT 06516-2770.
- What is John Krystal's phone number?
- The practice phone number listed in the NPPES registry for John Krystal is (203) 937-4790.
- Is John Krystal's NPI active?
- Yes — John Krystal's NPI (1336226240) is active in the NPPES registry as of the last update on 2019-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.