Doctor profile · Federal record

Dr. Sienna Klopp, PA-C

Physician Assistant · Student in an Organized Health Care Education/Training Program · Flagstaff, AZ

  • NPI 1124770284
  • Accepts Medicare
  • MIPS 82.5 / 100 · 2023
  • 5 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1485 N Turquoise Dr Ste 200
Flagstaff, AZ 860012000
(866) 974-2673
fax (866) 939-2673
Mailing address
18444 N 25Th Ave Ste 310
Phoenix, AZ 850231266

Credentials & registration

NPPES · NUCC
NPI registered
January 2022 — 4 yrs on file
Profile last updated
February 15, 2022
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Arizona #8939

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124770284. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,195
Distinct HCPCS
10
Medicare allowed
$31,521
HCPCS Description Services Patients Avg allowed
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg 900 12 $7
J7329 Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg 900 21 $9
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 136 22 $1
20610 Aspiration and/or injection of fluid from large joint 74 51 $58
99213 Established patient office or other outpatient visit, 20-29 minutes 69 49 $74
99214 Established patient office or other outpatient visit, 30-39 minutes 29 23 $105
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope 24 23 $23
29827 Repair of shoulder rotator cuff using an endoscope 23 21 $141
73030 X-ray of shoulder, minimum of 2 views 22 21 $29
73564 X-ray of knee, 4 or more views 18 14 $38

In context: peer comparison

Among 21 peers in this city , average services per provider: 105. This provider delivers 21× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$73
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
DePuy Synthes Sales Inc. 1 $56.69
Orthofix Medical, Inc. 1 $15.95

By nature of payment

Food and Beverage
$73

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
149
Patients
64
Total drug cost
$1,066
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 38 28 $262
Cyclobenzaprine Hcl Generic 29 18 $193
Ondansetron Odt (Ondansetron) Brand 20 18 $198
Meloxicam Generic 18 0 $133
Tramadol Hcl Generic 17 0 $44
Diclofenac Sodium Generic 15 0 $151
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 12 0 $86

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sienna Klopp's medical specialty?
Dr. Sienna Klopp practices Physician Assistant in Flagstaff, AZ.
Where does Dr. Sienna Klopp practice?
Dr. Sienna Klopp practices at 1485 N Turquoise Dr Ste 200, Flagstaff, AZ 860012000. Office phone: 8669742673.
What is Dr. Sienna Klopp's NPI?
Dr. Sienna Klopp's National Provider Identifier (NPI) is 1124770284, issued by NPPES.
Does Dr. Sienna Klopp accept Medicare assignment?
Yes. Dr. Sienna Klopp accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sienna Klopp commonly perform?
Top Medicare-reported procedures in 2023: Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (HCPCS J7318); Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg (HCPCS J7329); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301). Source: CMS Medicare Physician & Other Practitioners file.