Doctor profile · Federal record

Dr. Allen Tham, MD

Orthopaedic Hand Surgery Physician (CMS: Hand Surgery) · Orthopaedic Surgery Physician · Fullerton, CA

  • NPI 1578715801
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2141 N Harbor Blvd, Suite 35000
Fullerton, CA 928353827
(714) 626-8630
fax (714) 626-8659
Mailing address
279 Imperial Hwy, Suite 730
Fullerton, CA 928351041

Credentials & registration

NPPES · NUCC
NPI registered
October 2008 — 18 yrs on file
Profile last updated
April 30, 2013
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207XS0106X — NUCC code
State licenses (2)
California #A110804 · Pennsylvania #MT185928

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578715801. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,220
Distinct HCPCS
10
Medicare allowed
$114,865
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 319 137 $1
99204 New patient office or other outpatient visit, 45-59 minutes 196 196 $180
99213 Established patient office or other outpatient visit, 20-29 minutes 196 153 $98
20550 Injection into tendon or ligament 180 107 $53
99214 Established patient office or other outpatient visit, 30-39 minutes 86 80 $138
99203 New patient office or other outpatient visit, 30-44 minutes 76 76 $122
20600 Aspiration and/or injection of fluid from small joint 40 32 $52
25600 Closed treatment of broken forearm (radius) bone at the wrist area on the thumb side of the wrist without manipulation 32 32 $398
73130 X-ray of hand, minimum of 3 views 26 21 $34
73110 X-ray of wrist, minimum of 3 views 22 17 $36

In context: peer comparison

Among 2 peers in Fullerton Orthopaedic Hand Surgery Physician, average services per provider: 91. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$154
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Stryker Corporation 1 $153.79

By nature of payment

Food and Beverage
$154

Frequently asked questions

Auto-generated from federal data
What is Dr. Allen Tham's medical specialty?
Dr. Allen Tham practices Orthopaedic Hand Surgery Physician in Fullerton, CA.
Where does Dr. Allen Tham practice?
Dr. Allen Tham practices at 2141 N Harbor Blvd, Fullerton, CA 928353827. Office phone: 7146268630.
What is Dr. Allen Tham's NPI?
Dr. Allen Tham's National Provider Identifier (NPI) is 1578715801, issued by NPPES.
Does Dr. Allen Tham accept Medicare assignment?
Yes. Dr. Allen Tham accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allen Tham commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.