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Dr. Wei-Che Ko , MD

Dermatology โ€ข Worcester, MA

Active NPI 1821523606 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

281 Lincoln St
Worcester, MA 016052138

Call 5083345979 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

281 Lincoln St

Worcester, MA 016052138

Telephone 5083345979
Fax 5083345232
Organization at the Same NPPES Address or Phone
A Jerome Philbin M.d., P.c. Facility NPI 1659319143

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Boston, MA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Umass Memorial Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of Massachusetts Medical School

Graduation Year

2017

Medicare patients

39 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $14,859 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $11,771 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

347 standardized 30-day fills in 2020

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$192,973 in 2020

The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2020.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $130.73 in 2024

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2024.

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Ko has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Ko as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Worcester and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 75% of clinicians listed under Dermatology in Worcester, MA (2024, 26 clinicians with data). Median for this group: 1,070. Middle half: 782 to 1,754.

Close to the middle for clinicians listed under Dermatology in Massachusetts (2024, 412 clinicians with data). Median for this group: 1,804. Middle half: 853 to 3,570.

Medicare-allowed amount

A lower Medicare-allowed amount than 80% of clinicians listed under Dermatology in Worcester, MA (2024, 26 clinicians with data). Median for this group: $76,395. Middle half: $35,688 to $156,768.

A lower Medicare-allowed amount than 90% of clinicians listed under Dermatology in Massachusetts (2024, 412 clinicians with data). Median for this group: $123,974. Middle half: $61,150 to $257,057.

Paid by Medicare

A lower Medicare payment amount than 80% of clinicians listed under Dermatology in Worcester, MA (2024, 26 clinicians with data). Median for this group: $55,623. Middle half: $25,935 to $118,154.

A lower Medicare payment amount than 90% of clinicians listed under Dermatology in Massachusetts (2024, 412 clinicians with data). Median for this group: $86,263. Middle half: $42,834 to $181,359.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Dr. Ko are from 2020.

35 active clinicians are listed under Dermatology with a practice address in Worcester, MA (627 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Worcester

5.7% of these 35 clinicians have the CMS telehealth indicator.

77.1% of these 35 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2020), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2024
Disclosure Year:

Program year 2024 (payments made January 1 โ€“ December 31, 2024): fewer than 11 records totaling $130.73.

Manufacturer Payment Nature Product Type Amount ($)
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $130.73

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2023โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
95044 Test for allergy using skin patch
1,796 21 $36.00 $5.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
44 24 $445.00 $128.30

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2020.

CMS Part D ยท Data Year 2020
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Ketoconazole Ketoconazole 95 2,502 $1,819.11 35
Triamcinolone Acetonide Triamcinolone Acetonide 45 1,666 $767.48 22
Mupirocin Mupirocin 36 790 $283.79 23
Betamethasone Dipropionate Betamethasone Dipropionate 27 727 $1,723.60 12
Tacrolimus Tacrolimus 22 575 $6,725.22 โ€”
Humira(Cf) Pen Adalimumab 20 616 $127,593.44 โ€”
Clindamycin Phosphate Clindamycin Phosphate 18 504 $1,058.53 โ€”
Clobetasol Propionate Clobetasol Propionate 15 505 $903.40 โ€”
Methotrexate Methotrexate Sodium 14 385 $292.50 โ€”
Otezla Apremilast 12 390 $46,326.67 โ€”
Acitretin Acitretin 11 330 $4,579.46 โ€”
Alclometasone Dipropionate Alclometasone Dipropionate 11 332 $899.50 โ€”

Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-06-30
Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

License # reported to NPPES MA 287348

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - DERMATOLOGY

Medicare Enrollment ID

I20210812003413

Enrollment State Jurisdiction

MA

PECOS Control ID

1658645833

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Umass Memorial Medical Group Inc

281 Lincoln St, Worcester, MA 016052138

Phone: 5083341000

Secondary Practice Locations

50 Staniford St

Boston, MA 021142517

Phone: 6177262914

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

35 listed
Zainab Abbas

Dermatology

NPI 1609028000
Dr. Andressa Akabane , MD MMSC

Student in an Organized Health Care Education/Training Program

NPI 1942903265

MDMMSC

NPI 1356376461

Doctor of Medicine (M.D.)

NPI 1598814311

Doctor of Medicine (M.D.)

Jessica Cosenza , PA

Physician Assistant

NPI 1992895189

Physician Assistant

NPI 1558749606

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

14 Historical Events
๐Ÿ“
Updated Practice Location August 05, 2021

Registered at 281 LINCOLN ST, WORCESTER, MA 016052138 (Tel: 5083345979)

๐Ÿ“
Updated Business Mailing Address August 05, 2021

Registered at PO BOX 415348, BOSTON, MA 022415348

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 05, 2021

Dermatology (license number reported to NPPES: MA 287348)

โœ…
NPI Profile Active June 27, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location June 27, 2017

Registered at 123 SUMMER ST, WORCESTER, MA 016081216 (Tel: 5083636208)

๐Ÿ“
Updated Business Mailing Address June 27, 2017

Registered at 123 SUMMER ST, WORCESTER, MA 016081216

๐Ÿ‘ค
Provider Name / Credentials Updated June 27, 2017

Recorded as WEI-CHE KO, MD

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 27, 2017

Internal Medicine (license number reported to NPPES: MA 271444)

โœ…
NPI Profile Active April 28, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) April 28, 2017

Registered at 123 SUMMER ST, WORCESTER, MA 016081216 (Tel: 5083636208)

๐Ÿ“
Business Mailing Address (Initial Record) April 28, 2017

Registered at 123 SUMMER ST, WORCESTER, MA 016081216

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) April 28, 2017

Recorded as WEI-CHE KO

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 28, 2017

Student in an Organized Health Care Education/Training Program

๐ŸŸข
Initial NPI Registration & Enumeration April 28, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1821523606
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 28, 2017
Last Update: June 30, 2026
Sole Proprietor: No

Other Dermatology Specialists in Worcester

All Dermatology Specialists in Worcester

Mailing Address

Po Box 415348

Boston, MA 022415348

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.