DR. WEI SUM LI M.D.
NPI 1629425046
Internal Medicine in Charlestown, MA

Active since May 16, 2016PECOS EnrolledAccepts Medicare Assignment
73 HIGH ST, CHARLESTOWN, MA 02129(617) 724-8135 Get Directions Write a Review

NPPES record last updated: October 2, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 2, 2022, Sep 8, 2021, Aug 18, 2020 and 3 more (6 updates tracked since 2016).

About Dr. Wei Sum Li M.d. NPPES

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

DR. WEI SUM LI M.D. (NPI 1629425046) is an individual internal medicine provider in Charlestown, Massachusetts, licensed in Massachusetts (283634) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1629425046
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. WEI SUM LICredential: M.D.
Location Address73 HIGH STCharlestown, MA 02129-3026
Mailing Address73 High StCharlestown, MA 02129-3026 · (617) 724-8135
Sole ProprietorYes
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 2016
Enumeration DateMay 16, 2016
Last NPPES UpdateOctober 2, 20226 updates tracked since enumeration
NPPES CertifiedOctober 2, 2022
NPI 1629425046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in MA · 283634 Licensed in RI · MD16644 Licensed in RI · LP03593
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 ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License 283634 (MA)
73 HIGH ST, Charlestown, MA 02129

Secondary Practice Location 1

Location 155 Fruit StBoston, MA 02114-2621 · Phone (617) 726-3557

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. Wei Sum Li M.d. 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 ID3476848631
PECOS Enrollment IDI20220512001479
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 5

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.

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.
177 services117 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
66 services43 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
25 services13 patients
Annual alcohol misuse screening, 5 to 15 minutes G0442
An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.
22 services22 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
22 services22 patients

Hospital Affiliations CMS Care Compare 4

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

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number220075
Location243 Charles StreetBoston, MA 02114 · Suffolk County
Emergency services

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300018
Location789 Central AveDover, NH 03820 · Strafford County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02129 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

Social Worker (Clinical)
73 HIGH ST
CHARLESTOWN, MA 02129
Internal Medicine
73 HIGH ST, CHARLESTOWN HEALTH CENTER ADULT MEDICINE
CHARLESTOWN, MA 02129
Psychologist
73 HIGH ST, MGH CHARLESTOWN HEALTH CENTER CTN
CHARLESTOWN, MA 02129
Nurse Practitioner (Family)
73 HIGH ST, MGH CHARLESTOWN HEALTH CENTER
CHARLESTOWN, MA 02129
Social Worker (Clinical)
73 HIGH ST
CHARLESTOWN, MA 02129
Social Worker (Clinical)
73 HIGH ST
CHARLESTOWN, MA 02129
Psychiatry & Neurology (Psychiatry)
73 HIGH ST, CHARLESTOWN HEALTH CARE CENTER
CHARLESTOWN, MA 02129
Clinical Nurse Specialist
73 HIGH ST
CHARLESTOWN, MA 02129

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 Sum Li's NPI number?

The NPI number for Wei Sum Li is 1629425046. It was assigned to this individual provider in the NPPES registry on May 16, 2016.

Where is Wei Sum Li located?

Wei Sum Li practices at 73 High St, Charlestown, MA 02129. The listed phone number is (617) 724-8135.

What is Wei Sum Li's specialty?

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

Is Wei Sum Li enrolled in Medicare?

Yes. Wei Sum Li 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 Sum Li affiliated with any hospitals?

According to CMS data, Wei Sum Li is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary - and Wentworth-Douglass Hospital.

When was this NPI record last updated?

The NPPES record for Wei Sum Li was last updated on October 2, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.