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CHUCK R. COLAS, D.O., P.C.
NPI 1861022873
Family Medicine in Cedarville, CA

Active since January 17, 2020
#66, COUNTY RD. 37 #6, CEDARVILLE, CA 96104(314) 888-5233(203) 590-8644 Get Directions Write a Review

NPPES record last updated: January 17, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Chuck R. Colas, D.o., P.c. NPPES

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

CHUCK R. COLAS, D.O., P.C. (NPI 1861022873) is a healthcare organization registered as a family medicine in Cedarville, California and active in the NPI registry since January 2020. The organization lists Kathleen Mary Berchelmann, President, as its authorized official.

NPPES Registry Identity

NPI1861022873
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameCHUCK R. COLAS, D.O., P.C.
Location Address#66, COUNTY RD. 37 #6Cedarville, CA 96104
Mailing Address711 Silvermine RdNew Canaan, CT 06840-4329 · (314) 888-5233 · Fax (203) 590-8644
Phone(314) 888-5233
Fax(203) 590-8644
Organization SubpartNo
Authorized OfficialKathleen Mary BerchelmannPresident · (314) 435-6105
Enumeration DateJanuary 17, 2020
✔ NPI 1861022873 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chuck R. Colas, D.o., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Chuck R. Colas, D.O., P.C., which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (6)

Karen Barragan, LCSW
Clinical Social Worker
NPI 1932620424
22307 KENT AVE APT 12
Torrance, CA 90505
(310) 493-7516
✔ PECOS✔ Accepts Medicare
Robert Chasuk, MD
Family Practice
NPI 1942202627
1180 NEWFIELD AVE
Stamford, CT 06905
(314) 888-5233
✔ PECOS✔ Accepts Medicare
Maria Regina Delozier, M.D.
Pediatric Medicine
NPI 1497071443
6911 CONVOY CT DEPT OF
San Diego, CA 92111
(619) 528-5000
✔ PECOS
Vi Tuong Nguyen, DO
Family Practice
NPI 1124656061
5069 EL CAJON BLVD
San Diego, CA 92115
(619) 583-8705
✔ PECOS✔ Accepts Medicare
Nora Ramos-Carthew, D.P.M.
Podiatry
NPI 1568447308
87 FENTON ST STE 101
Livermore, CA 94550
(925) 532-0099
✔ PECOS✔ Accepts Medicare
Stephanie Whittle, MD
Family Practice
NPI 1790003325
2100 STATHAM BLVD
Oxnard, CA 93033
(805) 330-8680
✔ PECOS✔ Accepts Medicare

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Chuck R. Colas, D.O., P.C.'s NPI number?

The NPI number for Chuck R. Colas, D.O., P.C. is 1861022873. It was assigned to this organization in the NPPES registry on January 17, 2020.

Where is Chuck R. Colas, D.O., P.C. located?

Chuck R. Colas, D.O., P.C. is located at #66, County Rd. 37 #6, Cedarville, CA 96104. The listed phone number is (314) 888-5233.

What is Chuck R. Colas, D.O., P.C.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Chuck R. Colas, D.O., P.C. enrolled in Medicare?

Yes. Chuck R. Colas, D.O., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Chuck R. Colas, D.O., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 4 Medicare specialties reassign their Medicare billing to Chuck R. Colas, D.O., P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Family Practice (3), Clinical Social Worker (1) and Pediatric Medicine (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Chuck R. Colas, D.O., P.C. was last updated on January 17, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.