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THEO YONN-BROWN MD
NPI 1184271900
Anesthesiology in New Haven, CT

Active since August 26, 2019PECOS EnrolledAccepts Medicare Assignment
20 YORK ST, NEW HAVEN, CT 06510(203) 688-4242 Get Directions Write a Review

NPPES record last updated: August 1, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 6, 2021, Aug 26, 2019 (2 updates tracked since 2019).

About Theo Yonn-brown Md NPPES

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

THEO YONN-BROWN MD (NPI 1184271900) is an individual anesthesiology provider in New Haven, Connecticut, licensed in Connecticut (82614) and active in the NPI registry since August 2019. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2021).

NPPES Registry Identity

NPI1184271900
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameTHEO YONN-BROWNCredential: MD
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address2 Brocketts Point RdBranford, CT 06405-4917
Phone(203) 688-4242
Sole ProprietorNo
Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2021
Enumeration DateAugust 26, 2019
Last NPPES UpdateAugust 1, 20252 updates tracked since enumeration
NPPES CertifiedAugust 1, 2025
✔ NPI 1184271900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CT · 82614
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
20 YORK ST, New Haven, CT 06510
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Theo Yonn-brown Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012305238
PECOS Enrollment IDI20250912003426
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.

Other Providers at the Same Location NPPES 20

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

AUDREY P SENIOR APRN
Nurse Practitioner (Family)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5860
DR. YEISID F FIGUEREDO M.D.
Pediatrics (Neonatal-Perinatal Medicine)
20 YORK ST, DEPT OF NEONATOLOGY
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2320
YALE NEW HAVEN HOSPITAL
Durable Medical Equipment & Medical Supplies (Customized Equipment)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2046
TAYLOR KINGSTON
Dietitian, Registered
20 YORK ST, FOOD AND NUTRITION EPB806
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9185
DR. TRAVIS DANIEL BONTRAGER MD
Hospitalist
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1734
NEEHARIKA THOTTEMPUDI MBBS
Psychiatry & Neurology (Neurology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
TERESA JOSEPH D.O.
Internal Medicine (Nephrology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 737-8894
MR. BRAD ST. MARTIN MD
Obstetrics & Gynecology
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242

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 Theo Yonn-brown's NPI number?

The NPI number for Theo Yonn-brown is 1184271900. It was assigned to this individual provider in the NPPES registry on August 26, 2019.

Where is Theo Yonn-brown located?

Theo Yonn-brown practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Theo Yonn-brown's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Theo Yonn-brown enrolled in Medicare?

Yes. Theo Yonn-brown is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Theo Yonn-brown was last updated on August 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.