Ailie Chua Tan, MD
Internal Medicine Physician · Worcester, MA
Ailie Chua Tan, MD is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1699395053, issued on Apr 25, 2020. Check the license (Massachusetts 1018883, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ailie Chua Tan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1018883 MA
Self-reported in NPPES; status is on the state search - Practice location
- 119 Belmont St, Worcester, MA 01605
- Phone
- (508) 334-8942
- Enumerated
- Apr 25, 2020
- Record last updated
- May 21, 2025
- Fax
- (508) 334-6490
- Medicare enrollment
- Enrolled (PECOS I20240716002750); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 119 Belmont St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ailie Chua Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1018883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
422 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium34 claims
- Amlodipine Besylate27 claims
- Famotidine24 claims
- Eliquis20 claims
- Losartan Potassium17 claims
- Albuterol Sulfate Hfa14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $21.81
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ailie Chua Tan among 6,825 internal medicine physician records in Massachusetts
Ailie Chua Tan, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
448 internal medicine physician records list a practice address in Worcester
They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Worcester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Maria Casal, M.D.Worcester, MA 016051609859503
- Paula Cullinane, M.D.Worcester, MA 016051952384950
- Michael Galica, M.D.Worcester, MA 016051972586733
- Maria Garcia, M.D.Worcester, MA 016051396726220
- Mary Hawthorne, M.D.Worcester, MA 016051013990787
- Gayatridevi Ika, M.D.Worcester, MA 016051124001102
- Jayanthi Kumar, M.D.Worcester, MA 016051528041423
- Christine Macginnis, D.O.Worcester, MA 016051952382772
Common questions
What is Ailie Chua Tan, MD's NPI number?
Ailie Chua Tan, MD's National Provider Identifier (NPI) is 1699395053, issued on Apr 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ailie Chua Tan, MD located?
The NPPES record lists a practice address at 119 Belmont St, Worcester, MA, 01605. Phone: (508) 334-8942. Providers update this record themselves, so call before visiting.
How can I verify Ailie Chua Tan, MD's license?
NPPES lists Massachusetts license number 1018883, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ailie Chua Tan, MD prescribe under Medicare Part D?
In 2024, Ailie Chua Tan, MD had 422 Medicare Part D claims for 104 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.