Michael B. Schwartz, D.O.
Internal Medicine Physician · Darien, CT
Michael B. Schwartz, D.O. is an internal medicine physician with a practice address in Darien, Connecticut, and NPI 1811918683, issued on Jul 21, 2006. Check the license (Connecticut 000319, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael B. Schwartz
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 000319 CT
Self-reported in NPPES; status is on the state search - Practice location
- 36 Old Kings Hwy S, Darien, CT 06820
- Phone
- (203) 662-8900
- Enumerated
- Jul 21, 2006
- Record last updated
- Nov 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 662-8906
- Medicaid ID
- 001003194 CT
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 36 Old Kings Hwy S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda Buchanan Fischtrom, CD/NNutritionist1700060696
- Kate Gardner, R.D.Registered Dietitian1447673371
- Lisa Gardner, LCSWClinical Social Worker1811106867
- Sangeeta Kotian, MSPTPhysical Therapist1770714495
- Sara Mathews Dixon, LCSWClinical Social Worker1437486305
- Colin Pech, DDSDentist1083781355
Verify Michael B. Schwartz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 000319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael B. Schwartz among 2,623 internal medicine physician records in Connecticut
Michael B. Schwartz, D.O. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Darien
They are 15 of the 380 NPPES records with a practice address in Darien, and 2,623 internal medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,623 in Connecticut → Every provider in Darien → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gene Balboa, MDDarien, CT 068201841366820
- Margaret BaranDarien, CT 068201285623843
- Susan Collins, M.D.Darien, CT 068201306877626
- Amanda Collins- Baine, M.D.Darien, CT 068201154340040
- Mark Dam, M.DDarien, CT 068201720005507
- James Dorr, M.D.Darien, CT 068201427367705
- William Giesen, M.D.Darien, CT 068201124104724
- Karthik GunachelvanDarien, CT 068201740604941
Common questions
What is Michael B. Schwartz, D.O.'s NPI number?
Michael B. Schwartz, D.O.'s National Provider Identifier (NPI) is 1811918683, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael B. Schwartz, D.O. located?
The NPPES record lists a practice address at 36 Old Kings Hwy S, Darien, CT, 06820. Phone: (203) 662-8900. Providers update this record themselves, so call before visiting.
How can I verify Michael B. Schwartz, D.O.'s license?
NPPES lists Connecticut license number 000319, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.