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Edit this profileAt a glance
- 558 Ventu Park Rd Ste A, Thousand Oaks, CA 91320
About Dr. Grossman
Based in Thousand Oaks, CA, Robert A. Grossman, MD is listed in the NPI registry under obstetrics. Robert graduated from University of Southern California Keck School of Medicine in 1978. According to Medicare claims data, Robert cared for 582 Medicare patients across 622 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, cervical or vaginal cancer screening; pelvic and clinical breast examination, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1053462606 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (818) 817-9832
- Email not available
Practice Locations
558 VENTU PARK RD STE A
Thousand Oaks, CA 91320
Procedures Most Often Billed to Medicare
622 services · 582 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Assessment of emotional or behavioral problems | Treatment | 96127 |
40 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
272 | More than most peers in Obstetrics |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
197 | More than most peers in Obstetrics |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
46 | More often than most peers in Obstetrics |
| Smear for infectious agents | Lab test | 87210 |
41 | Too few peers to compare |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
26 | More often than most peers in Obstetrics |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Trained at University of Southern California Keck School of Medicine 3
Other providers in the same specialty who trained at the same institution.
Class of 1978 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Grossman's specialty?
Dr. Grossman is an obstetrics in Thousand Oaks, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Grossman?
Dr. Grossman is listed at 558 Ventu Park Rd Ste A, Thousand Oaks, CA 91320. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Grossman?
The number on file is (818) 817-9832. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Grossman's NPI number?
Dr. Grossman's National Provider Identifier is 1053462606. 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
What is Dr. Grossman's medical education?
Dr. Grossman attended University of Southern California Keck School of Medicine, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grossman been practicing?
Dr. Grossman has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Grossman known for?
According to Medicare billing data, Dr. Grossman provides treatments such as assessment of emotional or behavioral problems, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Grossman confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grossman. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.