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AILIE CHUA TAN MD
NPI 1699395053
Internal Medicine in Worcester, MA

Active since April 25, 2020PECOS EnrolledAccepts Medicare Assignment
119 BELMONT ST, WORCESTER, MA 01605(508) 334-8942(508) 334-6490 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 21, 2025, Jul 12, 2024, Apr 25, 2020 (3 updates tracked since 2020).

About Ailie Chua Tan Md NPPES

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

AILIE CHUA TAN MD (NPI 1699395053) is an individual internal medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1018883) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1699395053
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameAILIE CHUA TANCredential: MD
Location Address119 BELMONT STWorcester, MA 01605-2903
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Phone(508) 334-8942
Fax(508) 334-6490
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateApril 25, 2020
Last NPPES UpdateMay 21, 20253 updates tracked since enumeration
NPPES CertifiedMay 21, 2025
✔ NPI 1699395053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 1018883
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.
119 BELMONT ST, Worcester, MA 01605
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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

Ailie Chua Tan 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 ID9739624545
PECOS Enrollment IDI20240716002750
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 3

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
93 services45 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.
62 services26 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
58 services57 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

DR. PANKAJ ANIL KSHEERSAGAR M.B.B.S.,M.D
Family Medicine
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-5571
JASON D YANG
Internal Medicine (Rheumatology)
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-5224
SANDRA BELLINI N.P.
Nurse Practitioner (Neonatal, Critical Care)
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-6470
BENJAMIN D. HAMAR MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-0550
WALTER J ZAWACKI NP
Nurse Practitioner
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-8934
CARYN SULLIVAN LCSW
Social Worker
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-1000
WAYNE WAYFU CHAN M.D.
Orthopaedic Surgery
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-9750
NICHOLAS PAICOS PA STUDENT
Physician Assistant
119 BELMONT ST
WORCESTER, MA 01605
Worcester County (508) 334-8515

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 Ailie Tan's NPI number?

The NPI number for Ailie Tan is 1699395053. It was assigned to this individual provider in the NPPES registry on April 25, 2020.

Where is Ailie Tan located?

Ailie Tan practices at 119 Belmont St, Worcester, MA 01605. The listed phone number is (508) 334-8942.

What is Ailie Tan's specialty?

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

Is Ailie Tan enrolled in Medicare?

Yes. Ailie Tan 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 Ailie Tan affiliated with any hospitals?

According to CMS data, Ailie Tan is affiliated with Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Ailie Tan was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.