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ROBERT M. GREENE M.D.
NPI 1639193709
Internal Medicine - Cardiovascular Disease in Oakland, CA

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
82.39/100
CMS Quality Rating
3300 WEBSTER STREET, SUITE 410, OAKLAND, CA 94609(510) 549-4220(510) 433-0744 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 25, 2025, May 14, 2024, Jan 23, 2017 (3 updates tracked since 2017).

About Robert M. Greene M.d. NPPES

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

ROBERT M. GREENE M.D. (NPI 1639193709) is an individual cardiovascular disease provider in Oakland, California, licensed in California (G25204) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1972).

NPPES Registry Identity

NPI1639193709
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameROBERT M. GREENECredential: M.D.
Location Address3300 WEBSTER STREET, SUITE 410Oakland, CA 94609-3117
Mailing Address3300 Webster Street, Suite 410Oakland, CA 94609-3117 · (510) 549-4220 · Fax (510) 433-0744
Phone(510) 549-4220
Fax(510) 433-0744
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1972
Enumeration DateJuly 26, 2006
Last NPPES UpdateJune 25, 20253 updates tracked since enumeration
NPPES CertifiedJune 25, 2025
✔ NPI 1639193709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in CA · G25204
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License G25204 (CA)
3300 WEBSTER STREET, Oakland, CA 94609
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G252040CA

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 M. Greene M.d. 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 ID3577551183
PECOS Enrollment IDI20100830001079
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 3

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.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
94 services94 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
41 services25 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality63.02
Improvement Activities40
Cost64.31

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

A PROFESSIONAL CORPORATION
Surgery (Plastic and Reconstructive Surgery)
3300 WEBSTER STREET, STE 1109
OAKLAND, CA 94609
Alameda County (510) 763-7415
JOHN S HEGE MD INC
Internal Medicine
3300 WEBSTER STREET, #602
OAKLAND, CA 94609
Alameda County (510) 834-5427

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 Greene's NPI number?

The NPI number for Robert Greene is 1639193709. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Robert Greene located?

Robert Greene practices at 3300 Webster Street Suite 410, Oakland, CA 94609. The listed phone number is (510) 549-4220.

What is Robert Greene's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Robert Greene enrolled in Medicare?

Yes. Robert Greene 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 Greene was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.