Douglas Marks, MD
Internal Medicine · Rheumatology
20+ years in practiceNPI: 1013924240Licensed in NH
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Credentials & Recognition
Specialties
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
20+ years
Estimated from NPI enumeration date
Frequently Asked Questions about Dr. Douglas Marks, MD
Where does Dr. Douglas Marks, MD practice?+
Dr. Douglas Marks, MD practices in New Hampshire, NH. 87 MCGREGOR ST
STE 4100
MANCHESTER, NH 031023765.
What is Dr. Douglas Marks, MD's phone number?+
Dr. Douglas Marks, MD's practice phone is 603-695-2500. Office contact information is verified on the PBCMMG profile.
What does Dr. Douglas Marks, MD specialize in?+
Dr. Douglas Marks, MD's primary specialty is Internal Medicine, with additional focus on Rheumatology.
Is Dr. Douglas Marks, MD board certified?+
Board certification status for Dr. Douglas Marks, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Douglas Marks, MD been practicing?+
Dr. Douglas Marks, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Douglas Marks, MD's NPI number?+
Dr. Douglas Marks, MD's National Provider Identifier (NPI) is 1013924240, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
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