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

MICHAEL YONG-GYOU HWANG M.D.
NPI 1215941893
Psychiatry & Neurology - Psychiatry in Carmel, NY

Q: What is Michael Hwang's NPI number?

The NPI number for Michael Hwang is 1215941893. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Q: What is Michael Hwang's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Michael Hwang was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since July 28, 2006PECOS Enrolled

667 STONELEIGH AVE STE 202, CARMEL, NY 10512(845) 279-5908(845) 622-5055 Get Directions Write a Review

NPPES record last updated: October 26, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 26, 2026, Aug 13, 2019 (2 updates tracked since 2019).

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About Michael Yong-gyou Hwang M.d. NPPES

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

MICHAEL YONG-GYOU HWANG M.D. (NPI 1215941893) is an individual psychiatry provider in Carmel, New York, licensed in New York (184954) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1215941893

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameMICHAEL YONG-GYOU HWANGCredential: M.D.

Location Address667 STONELEIGH AVE STE 202Carmel, NY 10512-2455

Mailing Address667 Stoneleigh Ave Ste 202Carmel, NY 10512-2455 · (845) 279-5908 · Fax (845) 622-5055

Phone(845) 279-5908

Fax(845) 622-5055

Sole ProprietorYes

Enumeration DateJuly 28, 2006

Last NPPES UpdateOctober 26, 20262 updates tracked since enumeration

NPPES CertifiedOctober 26, 2026

✔ NPI 1215941893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in NY · 184954

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

667 STONELEIGH AVE STE 202, Carmel, NY 10512

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Secondary Practice Locations 2

Location 1241 North RdPoughkeepsie, NY 12601-1154 · Phone (845) 483-5000

Location 2385 Tremont Ave # 116A, East Orange VAMCEast Orange, NJ 07018-1023 · Phone (973) 676-1000 ext. 1421

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Yong-gyou Hwang M.d. 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.

Medicare Billing Reassignments

Medicare enrollment records show Michael Hwang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Westchester Medical Center Advanced Physician Services PC

22 mi

Anesthesiology

100 WOODS RD, TAYLOR PAVILION - ROOM M229
Valhalla, NY 10595

Reassigned Medicare billing, New York enrollment
1,663 clinicians in this Medicare group

NPI 1740687458 (914) 493-2844

St.Vincent' Hospital Westchester Psych

27 mi

Counseling

275 NORTH ST
Harrison, NY 10528

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: St Joseph's Hospital Yonkers
233 clinicians in this Medicare group

NPI 1932400140 (914) 925-5333

Prospect Health Access Network, Inc.

130 mi

Obstetrics & Gynecology

2100 KEYSTONE AVE, SUITE 707
Drexel Hill, PA 19026

Reassigned Medicare billing, Pennsylvania enrollment
654 clinicians in this Medicare group

NPI 1255786729 (610) 626-7070

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 10512 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

$187.05 typical visit price

range $61.88 – $187.05

Typical copayment $46.76 (range $15.47 – $46.76)

Most-billed visit code 99205

Established Patient

$76.88 typical visit price

range $19.92 – $151.94

Typical copayment $19.22 (range $4.98 – $37.98)

Most-billed visit code 99213

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.

MR. ANTHONY SHEPPARD LMSW

Social Worker