Tam Chang, PA-C
Physician Assistant · Worcester, MA
Tam Chang, PA-C is a physician assistant with a practice address in Worcester, Massachusetts, and NPI 1861537458, issued on Feb 21, 2007. Check the license (Massachusetts 1271, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tam Chang
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 1271 MA
Self-reported in NPPES; status is on the state search - Practice location
- 456 Park Avenue, Worcester, MA 01610
- Phone
- (508) 796-5661
- Enumerated
- Feb 21, 2007
- Record last updated
- May 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (508) 796-5666
- Medicare enrollment
- Enrolled (PECOS I20081119000808); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Verify Tam Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 1271Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41.5 times the Medicare Part D claims of the average physician assistant in 2024
34,416 Medicare Part D claims for 507 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 473 claims were for opioids.
Most prescribed
- Atorvastatin Calcium2,597 claims
- Losartan Potassium2,063 claims
- Metoprolol Succinate1,749 claims
- Amlodipine Besylate1,503 claims
- Metformin Hcl Er1,314 claims
- Ibandronate Sodium1,134 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: $185.06
11 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- LE And Chang Family Urgent Care PCWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tam Chang among 4,713 physician assistant records in Massachusetts
Tam Chang, PA-C is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 13% of them.
- NPI issued2007 · 13% of these records are older, 82% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2001 · median 2019 among the 3,217 with a school on file
- Record last updated2011 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
425 physician assistant records list a practice address in Worcester
They are 425 of the 13,166 NPPES records with a practice address in Worcester, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Worcester → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jo-Ellen Brodeur, FAMILY PRACTICEWorcester, MA 016101649281106
- Dianne Demers, PAWorcester, MA 016101649221599
- Vanessa KibathiWorcester, MA 016101740993849
- Samantha LaflashWorcester, MA 016101811695307
- Carissa Confeiteiro, PA-CWorcester, MA 016091639905599
- Cynthia Duhamel, PA-CWorcester, MA 016091558724468
- Allison FitzgeraldWorcester, MA 016091891650966
- Karla Hanson, PA-CWorcester, MA 016091629038260
Common questions
What is Tam Chang, PA-C's NPI number?
Tam Chang, PA-C's National Provider Identifier (NPI) is 1861537458, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tam Chang, PA-C located?
The NPPES record lists a practice address at 456 Park Avenue, Worcester, MA, 01610. Phone: (508) 796-5661. Providers update this record themselves, so call before visiting.
How can I verify Tam Chang, PA-C's license?
NPPES lists Massachusetts license number 1271, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Tam Chang, PA-C prescribe under Medicare Part D?
In 2024, Tam Chang, PA-C had 34,416 Medicare Part D claims for 507 beneficiaries; the average among physician assistant prescribers was 830. 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.