Doctor profile · Federal record

Dr. Elizabeth Tamaren

Surgical Physician Assistant (CMS: Physician Assistant) · Physician Assistant · Boulder, CO

  • NPI 1104594183
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4743 Arapahoe Ave Ste 202
Boulder, CO 803031128
(303) 938-5700
fax (303) 998-0007
Additional location
4743 Arapahoe Ave Ste 100
Boulder, CO 803031123
(303) 443-2123
fax (303) 443-9497
Mailing address
3310 Folsom St
Boulder, CO 803042404

Credentials & registration

NPPES · NUCC
NPI registered
September 2021 — 5 yrs on file
Profile last updated
July 24, 2025
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363AS0400X — NUCC code
State license (1)
Colorado #PA.0007125
Medicaid
CO #9000200340

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104594183. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
234
Distinct HCPCS
4
Medicare allowed
$17,859
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 125 93 $77
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 50 32 $42
99214 Established patient office or other outpatient visit, 30-39 minutes 48 40 $107
99203 New patient office or other outpatient visit, 30-44 minutes 11 11 $96

In context: peer comparison

Among 7 peers in this city , average services per provider: 1,602. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$96
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $55.23
Medtronic, Inc. 2 $40.51

By nature of payment

Food and Beverage
$96

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
71
Patients
38
Total drug cost
$2,179
Drug Type Claims Patients Total cost
Cephalexin Generic 23 21 $90
Oxycodone Hcl Generic 23 17 $97
Methocarbamol Generic 13 0 $187
Tranexamic Acid Generic 12 0 $1,805

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Elizabeth Tamaren's medical specialty?
Dr. Elizabeth Tamaren practices Surgical Physician Assistant in Boulder, CO.
Where does Dr. Elizabeth Tamaren practice?
Dr. Elizabeth Tamaren practices at 4743 Arapahoe Ave Ste 202, Boulder, CO 803031128. Office phone: 3039385700.
What is Dr. Elizabeth Tamaren's NPI?
Dr. Elizabeth Tamaren's National Provider Identifier (NPI) is 1104594183, issued by NPPES.
Does Dr. Elizabeth Tamaren accept Medicare assignment?
Yes. Dr. Elizabeth Tamaren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Elizabeth Tamaren commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.