Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Charles N Jacobs, MD

Individual provider Nephrology Physician · NPI 1710953476

Charles N Jacobs, MD practises Nephrology in Waterville, Maine. Graduated from Warren Alpert Medical School of Brown University in 1986, 40 years ago. Practices with Mainegeneral Medical Center, a 556-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
40
Trained at
Warren Alpert Medical School of Brown University
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

149 N St
Waterville, ME 04901-4974
Phone: (207) 872-1293
Fax: (207) 872-1091
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 35 Medical Center Pkwy, Augusta, ME 04330-8160 — (207) 626-6480

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 013355 (ME)

Record details

NPI number1710953476
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESMay 28, 2026
Certification dateMay 28, 2026

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 1986 (40 years in practice)
Group practice Mainegeneral Medical Center — 556 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients85
Services billed 153 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mainegeneral Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 556 clinicians in the practice; 12 are shown here.

Other providers in Waterville