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

WEI-CHE KO MD
NPI 1821523606
Dermatology in Worcester, MA

Active since April 28, 2017PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
281 LINCOLN ST, WORCESTER, MA 01605(508) 334-5979(508) 334-5232 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 5, 2021, Jun 27, 2017, Apr 28, 2017 (3 updates tracked since 2017).

About Wei-che Ko Md NPPES

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

WEI-CHE KO MD (NPI 1821523606) is an individual dermatology provider in Worcester, Massachusetts, licensed in Massachusetts (287348) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of University Of Massachusetts Medical School (2017).

NPPES Registry Identity

NPI1821523606
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameWEI-CHE KOCredential: MD
Location Address281 LINCOLN STWorcester, MA 01605-2138
Mailing AddressPo Box 415348Boston, MA 02241-5348
Fax(508) 334-5232
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 2017
Enumeration DateApril 28, 2017
Last NPPES UpdateJune 30, 20263 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
NPI 1821523606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in MA · 287348
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.
281 LINCOLN ST, Worcester, MA 01605

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

Wei-che Ko 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 ID1658645833
PECOS Enrollment IDI20210812003413
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using skin patch 95044
A skin patch test helps identify allergens causing skin reactions. Small patches with potential allergens are applied to your skin, usually on the back. After 48 hours, they are removed to check for reactions. It's a safe and effective way to diagnose allergies.
1,796 services21 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
44 services24 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01605 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.09
Promoting Interoperability100
Improvement Activities40

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.

Occupational Therapist
281 LINCOLN ST
WORCESTER, MA 01605
Physician Assistant
281 LINCOLN ST
WORCESTER, MA 01605
Emergency Medicine
281 LINCOLN ST, MED STAFF SVCS
WORCESTER, MA 01605
Family Medicine
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Internal Medicine (Medical Oncology)
281 LINCOLN ST, MEDICAL STAFF SVCS
WORCESTER, MA 01605
Speech-Language Pathologist
281 LINCOLN ST
WORCESTER, MA 01605
Orthopaedic Surgery
281 LINCOLN ST
WORCESTER, MA 01605
Plastic Surgery (Surgery of the Hand)
281 LINCOLN ST
WORCESTER, MA 01605

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 Wei-che Ko's NPI number?

The NPI number for Wei-che Ko is 1821523606. It was assigned to this individual provider in the NPPES registry on April 28, 2017.

Where is Wei-che Ko located?

Wei-che Ko practices at 281 Lincoln St, Worcester, MA 01605. The listed phone number is (508) 334-5979.

What is Wei-che Ko's specialty?

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

Is Wei-che Ko enrolled in Medicare?

Yes. Wei-che Ko 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.

Is Wei-che Ko affiliated with any hospitals?

According to CMS data, Wei-che Ko is affiliated with Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Wei-che Ko was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 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.