Physician Profile
Based in Walnut Creek, CA, Gerald Frank Katz, M.D. is listed in the NPI registry under obstetrics/gynecology. Gerald is also listed as specializing in obstetrics & gynecology. According to Medicare claims data, Gerald cared for 288 Medicare patients across 333 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
112 LA CASA VIA STE 200
Walnut Creek, CA 94598
Within Obstetrics and Gynecology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Most searched procedures
333 services · 288 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of lining of uterus | Procedure | 58100 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
97 |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
64 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
63 |
| Stool analysis for blood to screen for colon tumors | Lab test | 82270 |
54 |
| Smear for infectious agents | Lab test | 87210 |
17 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Katz is an obstetrics/gynecology in Walnut Creek, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OBSTETRICS/GYNECOLOGY”.
NPI registry
Dr. Katz is listed at 112 LA CASA VIA STE 200, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 933-4747. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Katz's National Provider Identifier is 1306868450. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Katz attended Other, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
Dr. Katz has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Katz performs procedures including biopsy of lining of uterus, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Katz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.