Doctor profile · Federal record

Dr. Marianne Sommerville, MD

Hospitalist Physician · Obstetrics & Gynecology Physician · Obstetrics Physician · Berkeley, CA

  • NPI 1457403818
  • MIPS 95.8 / 100 · 2023
  • 19 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2450 Ashby Ave Rm 3040
Berkeley, CA 947052067
(510) 204-3977
fax (510) 204-5429
Additional location
550 1St Ave, Labor & Delivery, 8 West
New York, NY 100166402
(858) 212-2945
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
September 9, 2020
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
California #G58224 · New York #270429

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457403818. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
723
Distinct HCPCS
10
Medicare allowed
$443,200
HCPCS Description Services Patients Avg allowed
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance 206 111 $1,246
36471 Injection of chemical agent into multiple incompetent veins of leg 99 62 $144
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 90 67 $113
99213 Established patient office or other outpatient visit, 20-29 minutes 78 67 $81
36475 Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 72 39 $1,015
36473 Mechanochemical destruction of first incompetent vein of arm or leg using imaging guidance 58 31 $1,158
99203 New patient office or other outpatient visit, 30-44 minutes 40 40 $108
93970 Ultrasound study of arm or leg veins with compression and maneuvers 37 37 $179
76942 Ultrasonic guidance for needle placement 19 14 $56
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $161

In context: peer comparison

Among 16 peers in Berkeley Hospitalist Physician, average services per provider: 93. This provider delivers 7.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
CashFlow Solutions, LLC 2 $4.04

By nature of payment

Food and Beverage
$4

Frequently asked questions

Auto-generated from federal data
What is Dr. Marianne Sommerville's medical specialty?
Dr. Marianne Sommerville practices Hospitalist Physician in Berkeley, CA.
Where does Dr. Marianne Sommerville practice?
Dr. Marianne Sommerville practices at 2450 Ashby Ave Rm 3040, Berkeley, CA 947052067. Office phone: 5102043977.
What is Dr. Marianne Sommerville's NPI?
Dr. Marianne Sommerville's National Provider Identifier (NPI) is 1457403818, issued by NPPES.
What procedures does Dr. Marianne Sommerville commonly perform?
Top Medicare-reported procedures in 2023: Injection of chemical agent into single incompetent vein of leg using ultrasound guidance (HCPCS 36465); Injection of chemical agent into multiple incompetent veins of leg (HCPCS 36471); Ultrasound study of one arm or leg veins with compression and maneuvers (HCPCS 93971). Source: CMS Medicare Physician & Other Practitioners file.