Christine J. Ko, M.D.
Dermatopathology Physician · New Haven, CT
Christine J. Ko, M.D. is a dermatopathology physician with a practice address in New Haven, Connecticut, and NPI 1841258282, issued on May 3, 2006. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Christine J. Ko
- Credential
- M.D.
- Primary taxonomy
- Dermatopathology Physician 207ND0900X
- License number
- MD426011 PA
Self-reported in NPPES; status is on the state search - Practice location
- 15 York Street, New Haven, CT 06510
- Phone
- (203) 785-4094
- Enumerated
- May 3, 2006
- Record last updated
- Jul 6, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (203) 785-6869
- Medicaid ID
- 101266539 PA
- Medicare enrollment
- Enrolled (PECOS I20060915000373); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest dermatopathology physician records → All 9 in Connecticut → Look up another NPI →
Also registered at 15 York Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna EisensteinDermatology Physician1497104822
- Jennifer Ruby, APRNFamily Nurse Practitioner1225461932
Verify Christine J. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average dermatopathology physician in 2024
345 Medicare Part D claims for 85 beneficiaries, against an average of 693 among the 249 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Ketoconazole46 claims
- Clobetasol Propionate33 claims
- Fluocinolone Acetonide32 claims
- Acitretin23 claims
- Fluorouracil22 claims
- Triamcinolone Acetonide17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatopathology Physician providers in Connecticut
There are 9 dermatopathology physician records in Connecticut.
All 9 in Connecticut → Every provider in New Haven → Dermatopathology Physician nationwide →
The 8 dermatopathology physician records with the nearest ZIP codes
- Peggy Myung, M.D., PH.D.New Haven, CT 065101063677474
- Noah Levit, M.D., PH.D.Hamden, CT 065171710334420
- Steven Gaudio, M.D.Old Saybrook, CT 064751356303671
- Adrienne Berke, MDFarmington, CT 060321114922879
- Katalin Ferenczi, M.D.Farmington, CT 060321639380884
- Arni Kristjansson, M.D.Farmington, CT 060321154538122
- Campbell Stewart, M.D.Farmington, CT 060321750515565
- Michael Murphy, MDFarmington, CT 060301780681122
Common questions
What is Christine J. Ko, M.D.'s NPI number?
Christine J. Ko, M.D.'s National Provider Identifier (NPI) is 1841258282, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christine J. Ko, M.D. located?
The NPPES record lists a practice address at 15 York Street, New Haven, CT, 06510. Phone: (203) 785-4094. Providers update this record themselves, so call before visiting.
How can I verify Christine J. Ko, M.D.'s license?
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.
How much does Christine J. Ko, M.D. prescribe under Medicare Part D?
In 2024, Christine J. Ko, M.D. had 345 Medicare Part D claims for 85 beneficiaries; the average among dermatopathology physician prescribers was 693. Part D covers Medicare prescriptions only.
What is Christine J. Ko, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.