Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gnanaraj Johnson Koilpillai, MD

Individual provider Family Medicine Physician · NPI 1245218064

Gnanaraj Johnson Koilpillai, MD is a Family Practice in Frederick, Maryland. Qualified in 1994, 32 years ago. Practices with Walnut Street Community Health Center, Inc, an 18-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
32
Licensed in
MD
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

194 Thomas Johnson Dr Ste A
Frederick, MD 21702-4679
Phone: (240) 215-6310
Fax: (240) 566-7751
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence D0057285 (MD)

Record details

NPI number1245218064
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 3, 2006
Last updated in NPPESJuly 30, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Walnut Street Community Health Center, Inc. — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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