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

Collins P Sein, MD

Individual provider Internal Medicine Physician · NPI 1699769554

Collins P Sein, MD is an Internal Medicine Physician in Waldorf, Maryland. Licensed in Maryland. Registered with an NPI since 2005.

Licensed in
MD
In the registry since
2005
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

3460 Old Washington Rd Ste 203A
Waldorf, MD 20602-3240
Phone: (301) 934-8811
Fax: (301) 934-9321
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0046979 (MD)

Record details

NPI number1699769554
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 7, 2005
Last updated in NPPESApril 5, 2018

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