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DR. MARTIN H WILLIAMS MD
NPI 1902863798
Internal Medicine in Danbury, CT

Active since April 27, 2006PECOS Enrolled
100 RESERVE RD STE A4, DANBURY, CT 06810(203) 794-1979(203) 794-1796 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Martin H Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARTIN H WILLIAMS MD (NPI 1902863798) is an individual internal medicine provider in Danbury, Connecticut, licensed in Connecticut (023084) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1902863798
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARTIN H WILLIAMSCredential: MD
Location Address100 RESERVE RD STE A4Danbury, CT 06810-5267
Mailing Address100 Reserve Rd Ste A4Danbury, CT 06810-5267 · (203) 794-1979 · Fax (203) 794-1796
Phone(203) 794-1979
Fax(203) 794-1796
Sole ProprietorNo
Enumeration DateApril 27, 2006
Last NPPES UpdateDecember 13, 2021
NPPES CertifiedDecember 13, 2021
✔ NPI 1902863798 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 023084
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
100 RESERVE RD STE A4, Danbury, CT 06810
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Other Identifiers 1

Medicaid00120846CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Martin H Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06810 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KAREN E COBLENS MD
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
AMIN R ELASHKER DO
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
DANBURY MEDICAL GROUP LLC
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
CRISANNYS FERNANDEZ APRN
Nurse Practitioner (Family)
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
BRENDA EDITH CHACON-MORENO MD
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
DR. JEFFREY SCOTT METZGER MD
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
DANIELLE S PHILLIP-JOURNAL MD
Internal Medicine
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979
TRICIA RICKETTSFACEY
Nurse Practitioner (Family)
100 RESERVE RD STE A4
DANBURY, CT 06810
Western Connecticut Planning Region (203) 794-1979

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Martin Williams's NPI number?

The NPI number for Martin Williams is 1902863798. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Where is Martin Williams located?

Martin Williams practices at 100 Reserve Rd Ste A4, Danbury, CT 06810. The listed phone number is (203) 794-1979.

What is Martin Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Martin Williams enrolled in Medicare?

Yes. Martin Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Martin Williams was last updated on December 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.