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

Dr. Nicholas Duff Hazen, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1205254174

Dr. Nicholas Duff Hazen, MD is an Obstetrics/Gynecology in Washington, District of Columbia. Qualified in 2014, 12 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
12
Licensed in
DC, MD, VA
In the registry since
2014
Specialties on file
3
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

3800 Reservoir Rd NW # 3PHC
Washington, DC 20007-2113
Phone: (202) 444-8531
Fax: (877) 544-7752
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD046205 (DC)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence D85528 (MD)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 0101269802 (VA)

Record details

NPI number1205254174
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2014
Last updated in NPPESAugust 10, 2020
Certification dateAugust 10, 2020

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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