1. Home
  2. Directory
  3. California
  4. Thousand Oaks
  5. Obstetrics Gynecology
  6. NPI Profile

ROBERT A GROSSMAN MD
NPI 1053462606
Obstetrics & Gynecology - Obstetrics in Thousand Oaks, CA

Active since January 12, 2007PECOS EnrolledAccepts Medicare Assignment
558 VENTU PARK RD STE A, THOUSAND OAKS, CA 91320(818) 817-9832(818) 817-9835 Get Directions Write a Review

NPPES record last updated: October 23, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Robert A Grossman Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT A GROSSMAN MD (NPI 1053462606) is an individual obstetrics provider in Thousand Oaks, California, licensed in California (G039997) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (1978).

NPPES Registry Identity

NPI1053462606
Entity TypeIndividualMale
Primary Taxonomy207VX0000X
Provider Legal NameROBERT A GROSSMANCredential: MD
Location Address558 VENTU PARK RD STE AThousand Oaks, CA 91320-2752
Mailing Address558 Ventu Park Rd Ste AThousand Oaks, CA 91320-2752 · (818) 817-9832 · Fax (818) 817-9835
Phone(818) 817-9832
Fax(818) 817-9835
Sole ProprietorNo
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 1978
Enumeration DateJanuary 12, 2007
Last NPPES UpdateOctober 23, 2014
✔ NPI 1053462606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in CA · G039997
Definition
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee
558 VENTU PARK RD STE A, Thousand Oaks, CA 91320
Open in Google Maps ↗

Other Identifiers 2

Medicare PINWG39997BCA
Medicare UPINA92148CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Robert A Grossman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476453796
PECOS Enrollment IDI20090903000178
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
272 services259 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
197 services197 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
46 services35 patients
Smear for infectious agents 87210
A smear for infectious agents is a simple test done to identify harmful microorganisms in your body. A sample is taken from your body, spread thinly onto a slide, and examined under a microscope. This helps in diagnosing various infections and diseases.
41 services25 patients
Assessment of emotional or behavioral problems 96127
Assessment of emotional or behavioral problems involves a thorough evaluation of your feelings, thoughts, and behaviors. It's a process where professionals study patterns over time to identify potential issues like anxiety, depression, or other mental health conditions.
40 services40 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91320 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$77.11 typical visit price
range $20.68 – $151.85
Typical copayment $19.27 (range $5.17 – $37.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Grossman's NPI number?

The NPI number for Robert Grossman is 1053462606. It was assigned to this individual provider in the NPPES registry on January 12, 2007.

Where is Robert Grossman located?

Robert Grossman practices at 558 Ventu Park Rd Ste A, Thousand Oaks, CA 91320. The listed phone number is (818) 817-9832.

What is Robert Grossman's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

Is Robert Grossman enrolled in Medicare?

Yes. Robert Grossman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Robert Grossman was last updated on October 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.