OPEN DOOR FAMILY MEDICAL CENTER, INC.
NPI 1003152240
Clinic/Center - Federally Qualified Health Center (FQHC) in Brewster, NY

Active since December 17, 2012CLIA Certified · 3 labs
155 MAIN ST, BREWSTER, NY 10509(845) 279-6999(845) 279-0908 Get Directions Write a Review

NPPES record last updated: December 17, 2012. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Open Door Family Medical Center, Inc. NPPES

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

OPEN DOOR FAMILY MEDICAL CENTER, INC. (NPI 1003152240) is a healthcare organization registered as a federally qualified health center (fqhc) in Brewster, New York and active in the NPI registry since December 2012. The organization holds 3 active CLIA laboratory certificates and lists Maria Mazzotta, Chief Finance Officer, as its authorized official.

NPPES Registry Identity

NPI1003152240
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameOPEN DOOR FAMILY MEDICAL CENTER, INC.
Location Address155 MAIN STBrewster, NY 10509-1521
Mailing Address165 Main StOssining, NY 10562-4702 · (914) 502-1470 · Fax (914) 762-7224
Fax(845) 279-0908
Organization SubpartYes
Authorized OfficialMaria MazzottaChief Finance Officer · (914) 502-1470
Enumeration DateDecember 17, 2012
✔ NPI 1003152240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Federally Qualified Health Center (FQHC)Ambulatory Health Care Facilities
Taxonomy Code261QF0400X
License✔ Licensed in NY · 5905200R
155 MAIN ST, Brewster, NY 10509

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Open Door Family Medical Center, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

147

Medicare enrollment records show 147 clinicians reassign Medicare billing to Open Door Family Medical Center, Inc., which bills Medicare for the services they deliver. Of these, 2 practice at this address and 6 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 17

Nurse Practitioner38
Clinical Social Worker28
Family Practice21
Mental Health Counselor16
Obstetrics/Gynecology12
Certified Nurse Midwife (CNM)7
Pediatric Medicine5
Podiatry4
9 other specialties16

Nearest to this location (20)

See all 147
Nurse Practitioner
NPI 1073108999
155 MAIN ST STE 101
Brewster, NY 10509
(273) 791-4632
✔ PECOSSame address
Family Practice
NPI 1780627729
155 MAIN ST
Brewster, NY 10509
(845) 279-6999
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1134669724
667 STONELEIGH AVE SUITE 111
Carmel, NY 10512
(845) 279-5131
✔ PECOS2.9 mi
Podiatry
NPI 1346233194
667 STONELEIGH AVE SUITE 111
Carmel, NY 10512
(845) 278-8637
✔ PECOS✔ Accepts Medicare2.9 mi
Clinical Social Worker
NPI 1912474446
207 DAHLIA DR
Mahopac, NY 10541
(347) 624-7318
✔ PECOS✔ Accepts Medicare6.8 mi
Clinical Social Worker
NPI 1891056131
82 NEW ST
Ridgefield, CT 06877
(518) 364-1218
✔ PECOS✔ Accepts Medicare9.2 mi
Family Practice
NPI 1053496166
30 W MAIN ST
Mount Kisco, NY 10549
(914) 666-3272
✔ PECOS✔ Accepts Medicare14 mi
Family Practice
NPI 1124180906
30 W MAIN ST OPEN DOOR FAMILY MEDICAL CENTERS, INC.
Mount Kisco, NY 10549
(914) 941-1263
✔ PECOS✔ Accepts Medicare14 mi
Nurse Practitioner
NPI 1306524863
30 W MAIN ST
Mount Kisco, NY 10549
(914) 632-2737
✔ PECOS✔ Accepts Medicare14 mi
Nurse Practitioner
NPI 1245560242
30 W MAIN ST
Mount Kisco, NY 10549
(914) 666-3272
✔ PECOS14 mi
Gynecological Oncology
NPI 1417938192
400 E MAIN ST CAREMOUNT MEDICAL, PC
Mount Kisco, NY 10549
(914) 241-1050
✔ PECOS✔ Accepts Medicare15 mi
Certified Nurse Midwife (CNM)
NPI 1548350317
1980 CROMPOND RD
Cortlandt Manor, NY 10567
(914) 737-9000
✔ PECOS16 mi
Clinical Social Worker
NPI 1578821112
52 SAINT JOHNS PL
Chappaqua, NY 10514
(914) 772-5377
✔ PECOS✔ Accepts Medicare18 mi
Certified Nurse Midwife (CNM)
NPI 1316009467
165 MAIN ST OPEN DOOR FAMILY MEDICAL CENTERS, INC.
Ossining, NY 10562
(914) 941-1263
✔ PECOS21 mi
Clinical Social Worker
NPI 1467515023
165 MAIN ST OPEN DOOR FAMILY MEDICAL CENTERS, INC.
Ossining, NY 10562
(914) 941-1263
✔ PECOS✔ Accepts Medicare21 mi
Podiatry
NPI 1407906845
165 MAIN ST 2ND FLOOR
Ossining, NY 10562
(914) 502-1425
✔ PECOS✔ Accepts Medicare21 mi
Psychiatry
NPI 1710078787
165 MAIN ST
Ossining, NY 10562
(914) 941-1263
✔ PECOS✔ Accepts Medicare21 mi
Optometry
NPI 1568524502
165 MAIN ST OPEN DOOR FAMILY MEDICAL CENTERS, INC.
Ossining, NY 10562
(914) 941-1263
✔ PECOS✔ Accepts Medicare21 mi
Pediatric Medicine
NPI 1568467868
165 MAIN ST
Ossining, NY 10562
(914) 941-1263
✔ PECOS21 mi
Obstetrics/Gynecology
NPI 1356445464
755 N BROADWAY STE 560 SLEEPY HOLLOW MEDICAL GROUP AT PHELPS
Sleepy Hollow, NY 10591
(914) 631-0337
✔ PECOS✔ Accepts Medicare24 mi
See all 147 clinicians

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

CLIA Laboratory Certificates CMS CLIA 3

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D2054395

Open Door Family Medical Center · Brewster, NY
Active · expires Mar 26, 2027
CLIA Number33D2054395
Laboratory TypeCommunity Clinic
Certificate Effective DateNovember 8, 2024
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Daren Wu
Laboratory Phone(845) 279-6999
Laboratory LocationOpen Door Family Medical Center155 Main Street, Brewster, NY 10509
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 33D0697828

Open Door Family Medical Center · Ossining, NY
Active · expires Mar 26, 2027
CLIA Number33D0697828
Laboratory TypeCommunity Clinic
Certificate Effective DateJanuary 9, 2020
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Daren Wu
Laboratory Phone(914) 502-1331
Laboratory LocationOpen Door Family Medical Center165 Main Street, Ossining, NY 10562
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 33D2318259

Open Door Family Medical Center - Church St · Ossining, NY
Active · expires Mar 26, 2027
CLIA Number33D2318259
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateFebruary 7, 2025
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Daren Wu
Laboratory Phone(914) 502-1350
Laboratory LocationOpen Door Family Medical Center - Church St2 Church St, Ossining, NY 10562
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Open Door Family Medical Center, Inc.'s NPI number?

The NPI number for Open Door Family Medical Center, Inc. is 1003152240. It was assigned to this organization in the NPPES registry on December 17, 2012.

Where is Open Door Family Medical Center, Inc. located?

Open Door Family Medical Center, Inc. is located at 155 Main St, Brewster, NY 10509. The listed phone number is (845) 279-6999.

What is Open Door Family Medical Center, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Federally Qualified Health Center (FQHC), with taxonomy code 261QF0400X.

Is Open Door Family Medical Center, Inc. enrolled in Medicare?

Yes. Open Door Family Medical Center, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Open Door Family Medical Center, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 147 clinicians in 17 Medicare specialties reassign their Medicare billing to Open Door Family Medical Center, Inc.. 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 Nurse Practitioner (38), Clinical Social Worker (28) and Family Practice (21). Of these, 2 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Open Door Family Medical Center, Inc. hold CLIA laboratory certificates?

Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Open Door Family Medical Center, Inc. was last updated on December 17, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.