Doctor profile · Federal record

Dr. Samantha Chan

Physician Assistant · Waltham, MA

  • NPI 1801488762
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
840 Winter Street, Boston Ortho and Spine
Waltham, MA 02451
(617) 738-8642
Additional location
300 Mount Auburn St Ste 505
Cambridge, MA 021385665
Mailing address
840 Winter St, Boston Orthopaedics and Spine
Waltham, MA 024511433

Credentials & registration

NPPES · NUCC
NPI registered
February 2021 — 5 yrs on file
Profile last updated
April 26, 2022
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Massachusetts #PA8574

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801488762. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,347
Distinct HCPCS
10
Medicare allowed
$65,412
HCPCS Description Services Patients Avg allowed
J3304 Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg 896 14 $17
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 712 88 $1
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg 194 60 $6
99214 Established patient office or other outpatient visit, 30-39 minutes 168 121 $118
20610 Aspiration and/or injection of fluid from large joint 162 104 $62
99203 New patient office or other outpatient visit, 30-44 minutes 76 76 $105
99213 Established patient office or other outpatient visit, 20-29 minutes 76 62 $85
99202 New patient office or other outpatient visit, 15-29 minutes 21 21 $68
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance 19 19 $95
73030 X-ray of shoulder, minimum of 2 views 12 12 $35

In context: peer comparison

Among 6 peers in Waltham Physician Assistant, average services per provider: 379. This provider delivers 6.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$775
Transactions
7
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Stryker Corporation 2 $196.35
Vericel Corporation 1 $146.75
Smith+Nephew, INC. 1 $146.23
DePuy Synthes Sales INC. 1 $141.60
Exactech, INC. 1 $128.83
Bioventus LLC 1 $15.15

By nature of payment

Food and Beverage
$775

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
50
Patients
38
Total drug cost
$196
Drug Type Claims Patients Total cost
Meloxicam Generic 29 20 $89
Oxycodone Hcl Generic 21 18 $107

Frequently asked questions

Auto-generated from federal data
What is Dr. Samantha Chan's medical specialty?
Dr. Samantha Chan practices Physician Assistant in Waltham, MA.
Where does Dr. Samantha Chan practice?
Dr. Samantha Chan practices at 840 Winter Street, Waltham, MA 02451. Office phone: 6177388642.
What is Dr. Samantha Chan's NPI?
Dr. Samantha Chan's National Provider Identifier (NPI) is 1801488762, issued by NPPES.
Does Dr. Samantha Chan accept Medicare assignment?
Yes. Dr. Samantha Chan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Samantha Chan commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg (HCPCS J3304); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (HCPCS J0702). Source: CMS Medicare Physician & Other Practitioners file.