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

Patrick E Callahan, MD

Individual provider Pain Medicine Physician · NPI 1447218060

Patrick E Callahan, MD is an Anesthesiology in Chestertown, Maryland. Graduated from Eastern Virginia Medical School in 1991, 35 years ago. Practices with Chesapeake Anesthesiology and Pain Management Physicians LLC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
35
Trained at
Eastern Virginia Medical School
Licensed in
MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 Brown St Chester River Hospital Ctr
Chestertown, MD 21620
Phone: (410) 778-3300
Fax: (410) 810-7808
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence D0046630 (MD)
Pain Medicine Physician Taxonomy 208VP0000X · Licence D0046630 (MD)

Record details

NPI number1447218060
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESNovember 8, 2023
Certification dateNovember 8, 2023
Mailing addressPo Box 120, Chestertown, MD 21620-0120

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesPAIN MANAGEMENT
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1991 (35 years in practice)
Group practice Chesapeake Anesthesiology And Pain Management Physicians Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare