Marvin Saul Koff, M.D.
Psychiatry Physician · Simsbury, CT
Marvin Saul Koff, M.D. is a psychiatry physician with a practice address in Simsbury, Connecticut, and NPI 1336372523, issued on Sep 3, 2009. Check the license (Connecticut 011876, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marvin Saul Koff
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 011876 CT
Self-reported in NPPES; status is on the state search - Practice location
- 4 Ashton Cir, Simsbury, CT 06070
- Phone
- (860) 651-3003
- Enumerated
- Sep 3, 2009
- Record last updated
- Sep 3, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Verify Marvin Saul Koff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 011876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marvin Saul Koff among 1,174 psychiatry physician records in Connecticut
Marvin Saul Koff, M.D. is one of 1,174 psychiatry physician records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 61% of them.
- NPI issued2009 · 61% of these records are older, 37% newer
- In a Medicare fileNo · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2009 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 psychiatry physician records list a practice address in Simsbury
They are 2 of the 180 NPPES records with a practice address in Simsbury, and 1,174 psychiatry physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,174 in Connecticut → Every provider in Simsbury → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Chijioke Egbujo, MDSimsbury, CT 060701164601548
- Gerard Gagne, M.D.Somers, CT 060711861437477
- Charles Mirabile, MDSharon, CT 060691780741249
- Mohammad Dada, M.D.Rocky Hill, CT 060671457307043
- Maynard Marquis, M.D.South Glastonbury, CT 060731437351624
- Peter Benet, M.D.South Windsor, CT 060741134230394
- Lori Calabrese, M.D.South Windsor, CT 060741770703712
- Manage Nissanka, M.D.South Windsor, CT 060741477535540
Common questions
What is Marvin Saul Koff, M.D.'s NPI number?
Marvin Saul Koff, M.D.'s National Provider Identifier (NPI) is 1336372523, issued on Sep 3, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marvin Saul Koff, M.D. located?
The NPPES record lists a practice address at 4 Ashton Cir, Simsbury, CT, 06070. Phone: (860) 651-3003. Providers update this record themselves, so call before visiting.
How can I verify Marvin Saul Koff, M.D.'s license?
NPPES lists Connecticut license number 011876, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.