Caleb Ellis Koljack, MD
Psychiatry Physician · New York, NY
Caleb Ellis Koljack, MD is a psychiatry physician with a practice address in New York, New York, and NPI 1891373023, issued on Mar 30, 2021. Check the license (New York 318285, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Caleb Ellis Koljack
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 318285 NY
Self-reported in NPPES; status is on the state search - Practice location
- 286 5TH Ave Ofc 7K, New York, NY 10001
- Phone
- (212) 746-1643
- Enumerated
- Mar 30, 2021
- Record last updated
- Aug 18, 2025
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Verify Caleb Ellis Koljack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 318285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatry physician in 2024
12 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Caleb Ellis Koljack among 6,589 psychiatry physician records in New York
Caleb Ellis Koljack, MD is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2025 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,604 psychiatry physician records list a practice address in New York
They are 2,604 of the 98,468 NPPES records with a practice address in New York, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in New York → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Daniel Bauman, M.D.New York, NY 100011487618625
- Donna Carmosky, MDNew York, NY 100011851386239
- Kevin Dicesare, MDNew York, NY 100011265491674
- Michael Dulchin, MDNew York, NY 100011649267543
- Kyle Kato, M.D.New York, NY 100011366419947
- Lois Macdonnell, M.D.New York, NY 100011154375756
- Megan Marumoto, M.D.New York, NY 100011760472765
- Ronald Moruzzi, D.O.New York, NY 100011821070921
Common questions
What is Caleb Ellis Koljack, MD's NPI number?
Caleb Ellis Koljack, MD's National Provider Identifier (NPI) is 1891373023, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Caleb Ellis Koljack, MD located?
The NPPES record lists a practice address at 286 5TH Ave Ofc 7K, New York, NY, 10001. Phone: (212) 746-1643. Providers update this record themselves, so call before visiting.
How can I verify Caleb Ellis Koljack, MD's license?
NPPES lists New York license number 318285, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caleb Ellis Koljack, MD prescribe under Medicare Part D?
In 2024, Caleb Ellis Koljack, MD had 12 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.