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Michael Schwartz, D.O.
NPI 1811918683 · Internal Medicine Physician · Darien, CT
Michael Schwartz, D.O. is a Internal Medicine Physician provider in Darien, CT (NPI 1811918683).
Provider details
- NPI number
- 1811918683
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 000319 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(95/100 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
2 documented practice locations
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
36 Old Kings Hwy S
Darien, CT 06820
Phone: (203) 662-8900
Fax: (203) 662-8906
Street-level locationGet directions
Mailing address
36 Old Kings Hwy S
Darien, CT 06820-4552
Additional practice locations (1)
- 50 Old Kings N HwyDarien, CT 06820-4609Phone: (203) 662-9333Fax: (203) 662-9313
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2019-11-19
Frequently asked questions
- What is Michael Schwartz's NPI number?
- Michael Schwartz's National Provider Identifier (NPI) is 1811918683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Schwartz's specialty?
- Michael Schwartz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Schwartz located?
- Michael Schwartz's practice location on file with NPPES is 36 Old Kings Hwy S, Darien, CT 06820.
- What is Michael Schwartz's phone number?
- The practice phone number listed in the NPPES registry for Michael Schwartz is (203) 662-8900.
- Is Michael Schwartz's NPI active?
- Yes — Michael Schwartz's NPI (1811918683) is active in the NPPES registry as of the last update on 2019-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.