Doctor profile · Federal record
Dr. Catherine Dieffenbach, MD
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · San Diego, CA
- NPI 1861810673
- Accepts Medicare
- 12 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9339 Genesee Avenue, Suite 220
San Diego, CA 921212196
(858) 455-7520
fax (858) 455-5461
Credentials & registration
- NPI registered
- March 2014 — 12 yrs on file
- Profile last updated
- April 16, 2024
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- California #C187220
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861810673. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$120
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Biogen, INC. | 3 | $71.47 | |
| Astellas Pharma US INC | 1 | $29.28 | |
| Hologic Sales and Service, LLC | 1 | $19.37 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Dieffenbach's medical specialty?
Dr. Catherine Dieffenbach practices Obstetrics & Gynecology Physician in San Diego, CA.
Where does Dr. Catherine Dieffenbach practice?
Dr. Catherine Dieffenbach practices at 9339 Genesee Avenue, San Diego, CA 921212196. Office phone: 8584557520.
What is Dr. Catherine Dieffenbach's NPI?
Dr. Catherine Dieffenbach's National Provider Identifier (NPI) is 1861810673, issued by NPPES.
Does Dr. Catherine Dieffenbach accept Medicare assignment?
Yes. Dr. Catherine Dieffenbach accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.