Doctor profile · Federal record
Dr. Sean Mickelsen, PA-C
Physician Assistant · Los Alamitos, CA
- NPI 1538839246
- Accepts Medicare
- 5 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3851 Katella Ave Ste 255
Los Alamitos, CA 907203353
(562) 732-4578
Credentials & registration
- NPI registered
- September 2021 — 5 yrs on file
- Profile last updated
- December 20, 2022
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #60053
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538839246. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
526
Distinct HCPCS
10
Medicare allowed
$46,428
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 147 | 101 | $83 | |
22614 |
Fusion of additional segment of spine | 46 | 23 | $54 | |
95923 |
Testing of autonomic (sympathetic) nervous system function | 43 | 43 | $119 | |
93923 |
Complete ultrasound study of arm and leg arteries | 40 | 40 | $126 | |
63048 |
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | 39 | 16 | $29 | |
22853 |
Insertion of cage or mesh device to spine bone and disc space during spine fusion | 36 | 25 | $36 | |
22840 |
Placement of stabilizing device to back of 1 spine bone in neck | 27 | 27 | $105 | |
22842 |
Placement of stabilizing device to back, 3-6 spine bone segments | 24 | 24 | $106 | |
22845 |
Placement of stabilizing device to front, 2-3 spine bone segments | 24 | 23 | $101 | |
63091 |
Removal of middle, lower, or sacral spine bone with release of spinal cord or nerves, transperitoneal or retroperitoneal approach, each additional segment | 24 | 18 | $25 |
In context: peer comparison
Among 4 peers in Los Alamitos Physician Assistant, average services per provider: 56. This provider delivers 9.4× the peer median.Open Payments
Industry payments received
All-time total
$452
Transactions
12
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Globus Medical, INC. | 8 | $362.36 | |
| Mimedx Group, INC. | 4 | $90.12 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Sean Mickelsen's medical specialty?
Dr. Sean Mickelsen practices Physician Assistant in Los Alamitos, CA.
Where does Dr. Sean Mickelsen practice?
Dr. Sean Mickelsen practices at 3851 Katella Ave Ste 255, Los Alamitos, CA 907203353. Office phone: 5627324578.
What is Dr. Sean Mickelsen's NPI?
Dr. Sean Mickelsen's National Provider Identifier (NPI) is 1538839246, issued by NPPES.
Does Dr. Sean Mickelsen accept Medicare assignment?
Yes. Dr. Sean Mickelsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean Mickelsen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Fusion of additional segment of spine (HCPCS 22614); Testing of autonomic (sympathetic) nervous system function (HCPCS 95923). Source: CMS Medicare Physician & Other Practitioners file.