Doctor profile · Federal record

Dr. Mary Barrett, M.D.

Specialist (CMS: Obstetrics/Gynecology) · Obstetrics & Gynecology Physician · Obstetrics & Gynecology Physician · Specialist · Obstetrics & Gynecology Physician · Longmont, CO

  • NPI 1902983976
  • Accepts Medicare
  • 41 yrs in practice
  • Licensed in 4 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
231 E 9Th Ave Ste 1A
Longmont, CO 805044687
(303) 651-2800
fax (303) 774-9100
Mailing address
231 E 9Th Ave
Longmont, CO 805044686

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
August 13, 2025
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
174400000X — NUCC code
State licenses (5)
Colorado #CDRH.0029546 · Indiana #01074809B · North Dakota #12641 · Colorado #29546 · Rhode Island #MD16855

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902983976. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42
Distinct HCPCS
2
Medicare allowed
$3,008
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 26 24 $91
G0101 Cervical or vaginal cancer screening; pelvic and clinical breast examination 16 16 $40

In context: peer comparison

Among 2 peers in Longmont Specialist, average services per provider: 114. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$32
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Astellas Pharma US INC 1 $32.33

By nature of payment

Food and Beverage
$32

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
49
Patients
17
Total drug cost
$2,118
Drug Type Claims Patients Total cost
Estradiol Generic 36 17 $1,396
Progesterone (Progesterone, Micronized) Brand 13 0 $721

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Barrett's medical specialty?
Dr. Mary Barrett practices Specialist in Longmont, CO.
Where does Dr. Mary Barrett practice?
Dr. Mary Barrett practices at 231 E 9Th Ave Ste 1A, Longmont, CO 805044687. Office phone: 3036512800.
What is Dr. Mary Barrett's NPI?
Dr. Mary Barrett's National Provider Identifier (NPI) is 1902983976, issued by NPPES.
Does Dr. Mary Barrett accept Medicare assignment?
Yes. Dr. Mary Barrett accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Barrett commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101). Source: CMS Medicare Physician & Other Practitioners file.