Doctor profile · Federal record

Dr. Shannon Dieffenderfer

Physician Assistant · Physician Assistant · Student in an Organized Health Care Education/Training Program · Anchorage, AK

  • NPI 1861048530
  • Accepts Medicare
  • 6 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4100 Lake Otis Pkwy Ste 108
Anchorage, AK 995085230
(907) 563-3145
fax (907) 561-3967
Additional location
187 Glenn Hwy
Glennallen, AK 995880005
(907) 822-5686

Credentials & registration

NPPES · NUCC
NPI registered
August 2019 — 7 yrs on file
Profile last updated
June 6, 2022
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code
State licenses (2)
Alaska #172156 · Georgia #10117

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861048530. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
81
Distinct HCPCS
3
Medicare allowed
$7,243
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 33 27 $74
99213 Established patient office or other outpatient visit, 20-29 minutes 29 28 $94
99214 Established patient office or other outpatient visit, 30-39 minutes 19 18 $110

In context: peer comparison

Among 55 peers in Anchorage Physician Assistant, average services per provider: 55. This provider delivers 1.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$907
Transactions
8
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Alaska Medical Technologies, LLC 2 $558.92
Ethicon US, LLC 3 $227.93
Solventum Corporation 2 $104.67
Stryker Corporation 1 $15.71

By nature of payment

Travel and Lodging
$546
Food and Beverage
$362

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
147
Patients
113
Total drug cost
$1,230
Drug Type Claims Patients Total cost
Gabapentin Generic 49 39 $419
Meloxicam Generic 38 24 $208
Cyclobenzaprine Hcl Generic 35 32 $506
Oxycodone Hcl Generic 25 18 $96

Frequently asked questions

Auto-generated from federal data
What is Dr. Shannon Dieffenderfer's medical specialty?
Dr. Shannon Dieffenderfer practices Physician Assistant in Anchorage, AK.
Where does Dr. Shannon Dieffenderfer practice?
Dr. Shannon Dieffenderfer practices at 4100 Lake Otis Pkwy Ste 108, Anchorage, AK 995085230. Office phone: 9075633145.
What is Dr. Shannon Dieffenderfer's NPI?
Dr. Shannon Dieffenderfer's National Provider Identifier (NPI) is 1861048530, issued by NPPES.
Does Dr. Shannon Dieffenderfer accept Medicare assignment?
Yes. Dr. Shannon Dieffenderfer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shannon Dieffenderfer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.