Doctor profile · Federal record

Dr. Karlynn Sievers, MD

Family Medicine Physician (CMS: Family Practice) · Casper, WY

  • NPI 1558434720
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1522 E A St
Casper, WY 826012217
(307) 233-6000
fax (307) 265-0841

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
September 20, 2010
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Missouri #2002014698
Medicaid
MO #209167006

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558434720. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
278
Distinct HCPCS
7
Medicare allowed
$20,969
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 72 28 $79
99213 Established patient office or other outpatient visit, 20-29 minutes 61 55 $73
99214 Established patient office or other outpatient visit, 30-39 minutes 58 43 $94
36415 Insertion of needle into vein for collection of blood sample 35 26 $8
99238 Hospital discharge day management, 30 minutes or less 26 24 $81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 11 $173
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 13 13 $61

In context: peer comparison

Among 14 peers in Casper Family Medicine Physician, average services per provider: 92. This provider delivers 3.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,141
Transactions
4
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Organon LLC 4 $4,141.42

By nature of payment

Compensation for Serving As Faculty or As A Speaker for A Medical Education Program
$4,125
Food and Beverage
$16

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
707
Patients
160
Total drug cost
$31,415
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 107 30 $1,275
Levothyroxine Sodium Generic 74 23 $985
Metformin Hcl Generic 71 16 $513
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 57 14 $1,342
Gabapentin Generic 52 22 $1,256
Lisinopril Generic 45 16 $415
Omeprazole Generic 41 15 $1,016
Metoprolol Succinate Generic 36 0 $522
Tizanidine Hcl Generic 36 0 $395
Oxycodone Hcl Generic 34 0 $897

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Karlynn Sievers's medical specialty?
Dr. Karlynn Sievers practices Family Medicine Physician in Casper, WY.
Where does Dr. Karlynn Sievers practice?
Dr. Karlynn Sievers practices at 1522 E A St, Casper, WY 826012217. Office phone: 3072336000.
What is Dr. Karlynn Sievers's NPI?
Dr. Karlynn Sievers's National Provider Identifier (NPI) is 1558434720, issued by NPPES.
Does Dr. Karlynn Sievers accept Medicare assignment?
Yes. Dr. Karlynn Sievers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karlynn Sievers commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); 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.