DR. MICHAEL D HORWICH MD, PHD
NPI 1538470976
Dermatology in Amherst, MA

Active since June 30, 2010PECOS EnrolledAccepts Medicare Assignment
29B COTTAGE ST, AMHERST, MA 01002(413) 549-7400(413) 549-7402 Get Directions Write a Review

NPPES record last updated: June 12, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Michael D Horwich Md, Phd NPPES

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

DR. MICHAEL D HORWICH MD, PHD (NPI 1538470976) is an individual dermatology provider in Amherst, Massachusetts, licensed in Massachusetts (258156) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of University Of Massachusetts Medical School (2010).

NPPES Registry Identity

NPI1538470976
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameDR. MICHAEL D HORWICHCredential: MD, PHD
Location Address29B COTTAGE STAmherst, MA 01002-1206
Mailing Address526 Main St Ste 302Acton, MA 01720-3301 · (978) 371-7010 · Fax (978) 371-0522
Fax(413) 549-7402
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 2010
Enumeration DateJune 30, 2010
Last NPPES UpdateJune 12, 2025
NPPES CertifiedJune 12, 2025
NPI 1538470976 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in MA · 258156
Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

29B COTTAGE ST, Amherst, MA 01002

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

Dr. Michael D Horwich Md, Phd 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 ID7315163474
PECOS Enrollment IDI20140725000446
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01002 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
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 3

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

Dermatology
29B COTTAGE ST
AMHERST, MA 01002
Physician Assistant (Medical)
29B COTTAGE ST
AMHERST, MA 01002
Dermatology
29B COTTAGE ST
AMHERST, MA 01002

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 Michael Horwich's NPI number?

The NPI number for Michael Horwich is 1538470976. It was assigned to this individual provider in the NPPES registry on June 30, 2010.

Where is Michael Horwich located?

Michael Horwich practices at 29B Cottage St, Amherst, MA 01002. The listed phone number is (413) 549-7400.

What is Michael Horwich's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Michael Horwich enrolled in Medicare?

Yes. Michael Horwich 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 Michael Horwich was last updated on June 12, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.