Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANNIE W YANG MD
NPI 1326625120
Internal Medicine in Hartford, CT

Active since March 26, 2021PECOS EnrolledAccepts Medicare Assignment
80 SEYMOUR ST BLDG 502, HARTFORD, CT 06102(860) 972-0549 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 16, 2026, Jan 7, 2025, Apr 2, 2021 and 1 more (4 updates tracked since 2021).

About Annie W Yang Md NPPES

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

ANNIE W YANG MD (NPI 1326625120) is an individual internal medicine provider in Hartford, Connecticut, licensed in Connecticut (79835) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1326625120
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameANNIE W YANGCredential: MD
Location Address80 SEYMOUR ST BLDG 502Hartford, CT 06102-8000
Mailing Address1290 Silas Deane Hwy, Hhc-cvoWethersfield, CT 06109-4337
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 26, 2021
Last NPPES UpdateSeptember 16, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2026
✔ NPI 1326625120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 79835
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.
Also ListedHospitalistTaxonomy 208M00000X · License 347429 (NY)
80 SEYMOUR ST BLDG 502, Hartford, CT 06102

Secondary Practice Locations 2

Location 1757 Westwood PlzLos Angeles, CA 90095-7419 · Phone (310) 825-7375
Location 21111 Amsterdam AveNew York, NY 10025-1716 · Phone (212) 523-2900

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Annie W Yang 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 ID6901336619
PECOS Enrollment IDI20250211002044
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.

Medicare Billing Reassignment

Medicare enrollment records show Annie Yang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Surgery
85 SEYMOUR ST STE 415
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,921 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06102 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 20

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

Physician Assistant
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Nurse Practitioner (Acute Care)
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Internal Medicine
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Physician Assistant
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Family Medicine
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Nurse Practitioner
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Physician Assistant (Medical)
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102
Internal Medicine
80 SEYMOUR ST BLDG 502
HARTFORD, CT 06102

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 Annie Yang's NPI number?

The NPI number for Annie Yang is 1326625120. It was assigned to this individual provider in the NPPES registry on March 26, 2021.

Where is Annie Yang located?

Annie Yang practices at 80 Seymour St Bldg 502, Hartford, CT 06102. The listed phone number is (860) 972-0549.

What is Annie Yang's specialty?

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

Is Annie Yang enrolled in Medicare?

Yes. Annie Yang 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.

Which organization bills Medicare for Annie Yang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Annie Yang reassigns Medicare benefits to Hartford Healthcare Medical Group Specialists, PLLC (Hartford, CT). The 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 Annie Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Annie Yang accept?

Health plans from Anthem Blue Cross and Blue Shield list Annie Yang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Annie Yang was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.