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Jay Siwek, MD
NPI 1821021346 · Family Medicine Physician · Colmar Manor, MD
Jay Siwek, MD is a Family Medicine Physician provider in Colmar Manor, MD (NPI 1821021346).
Provider details
- NPI number
- 1821021346
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD11865 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
4151 Bladensburg Rd
Colmar Manor, MD 20722-1928
Phone: (202) 269-7172
Street-level locationGet directions
Mailing address
Po Box 1471
Merrifield, VA 22116-1471
Registry dates
- Enumerated
- 2006-07-08
- Last updated
- 2008-03-19
Frequently asked questions
- What is Jay Siwek's NPI number?
- Jay Siwek's National Provider Identifier (NPI) is 1821021346, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Siwek's specialty?
- Jay Siwek is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Siwek located?
- Jay Siwek's practice location on file with NPPES is 4151 Bladensburg Rd, Colmar Manor, MD 20722-1928.
- What is Jay Siwek's phone number?
- The practice phone number listed in the NPPES registry for Jay Siwek is (202) 269-7172.
- Is Jay Siwek's NPI active?
- Yes — Jay Siwek's NPI (1821021346) is active in the NPPES registry as of the last update on 2008-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.