Doctor profile · Federal record

Dr. Marilyn Honegger, M.D.

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Orinda, CA

  • NPI 1376548156
  • Accepts Medicare
  • 50 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12 Camino Encinas
Orinda, CA 945633309
(510) 204-8180
fax (925) 254-0687

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
October 21, 2011
Year of graduation
1976 — 50 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
California #G53701

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376548156. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
86
Distinct HCPCS
3
Medicare allowed
$4,913
HCPCS Description Services Patients Avg allowed
G0101 Cervical or vaginal cancer screening; pelvic and clinical breast examination 42 42 $48
99212 Established patient office or other outpatient visit, 10-19 minutes 32 27 $70
Q0091 Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory 12 12 $56

In context: peer comparison

Among 1 peers in Orinda Obstetrics & Gynecology Physician, average services per provider: 28. This provider delivers 3.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
66
Patients
13
Total drug cost
$14,564
Drug Type Claims Patients Total cost
Estradiol Generic 30 13 $2,138
Imvexxy (Estradiol) Brand 24 0 $6,011
Estring (Estradiol) Brand 12 0 $6,414

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marilyn Honegger's medical specialty?
Dr. Marilyn Honegger practices Obstetrics & Gynecology Physician in Orinda, CA.
Where does Dr. Marilyn Honegger practice?
Dr. Marilyn Honegger practices at 12 Camino Encinas, Orinda, CA 945633309. Office phone: 5102048180.
What is Dr. Marilyn Honegger's NPI?
Dr. Marilyn Honegger's National Provider Identifier (NPI) is 1376548156, issued by NPPES.
Does Dr. Marilyn Honegger accept Medicare assignment?
Yes. Dr. Marilyn Honegger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marilyn Honegger commonly perform?
Top Medicare-reported procedures in 2023: Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Established patient office or other outpatient visit (HCPCS 99212); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091). Source: CMS Medicare Physician & Other Practitioners file.