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

Dr. William Joseph Cullen, MD

Individual provider Hospitalist Physician · NPI 1679531552

Dr. William Joseph Cullen, MD is an Internal Medicine in Biddeford, Maine. Graduated from Rutgers New Jersey Medical School in 1983, 43 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
43
Trained at
Rutgers New Jersey Medical School
Licensed in
ME
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

1 Medical Center Dr
Biddeford, ME 04005-9422
Phone: (207) 283-7937
Fax: (207) 283-7018
Show map & directions

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

Additional practice locations (2)

  • 22 Bramhall St, Portland, ME 04102-3134 — (207) 662-4618
  • 25 June St, Sanford, ME 04073-2621 — (207) 324-4310

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD22414 (ME)

Record details

NPI number1679531552
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESJuly 15, 2025
Certification dateJuly 15, 2025
Mailing address1 Medical Center Dr, Biddeford, ME 04005-9422

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1983 (43 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Biddeford