ROBERT MICHAEL GREENBERG M.D.
NPI 1376628032
Emergency Medicine in San Leandro, CA

NPI Status: Active since October 25, 2006

Contact Information

2500 MERCED ST
SAN LEANDRO, CA
ZIP 94577
Phone: (510) 454-1000

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  • Individual
  • Male
  • Years of Experience 28
  • Emergency Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ROBERT GREENBERG

This page provides the complete NPI Profile along with additional information for Robert Greenberg, a provider established in San Leandro, California with a medical specialization in Emergency Medicine and more than 28 years of experience. He graduated from Js Weill Medical College, Cornell University in 1998. The healthcare provider is registered in the NPI registry with number 1376628032 assigned on October 2006. The practitioner's primary taxonomy code is 207P00000X with license number A79081 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1376628032
Provider Name
ROBERT MICHAEL GREENBERG M.D.
Gender
Male
Entity Type
Individual
Location Address
2500 MERCED ST SAN LEANDRO, CA 94577
Location Phone
(510) 454-1000
Mailing Address
2500 MERCED ST SAN LEANDRO, CA 94577
Mailing Phone
(510) 454-1000
Medical School Name
JS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduation Year
1998
Is Sole Proprietor?
No
Enumeration Date
10-25-2006
Last Update Date
12-08-2021
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
A79081
License State
CA
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00A790810MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Robert Greenberg is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Robert Greenberg is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9739218868

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20110405000712

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $26.12 for a new patient copayment and $29.87 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 94577 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $104.51
  • Minimum New Patient Price $69
  • Maximum New Patient Price $202.35
  • Average New Patient Copayment $26.12
  • Minimum New Patient Copayment $17.25
  • Maximum New Patient Copayment $50.58

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $119.48
  • Minimum Established Patient Price $23.44
  • Maximum Established Patient Price $166.46
  • Average Established Patient Copayment $29.87
  • Minimum Established Patient Copayment $5.86
  • Maximum Established Patient Copayment $41.61

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for ROBERT MICHAEL GREENBERG M.D.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1376628032
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
231461221606
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 1 + 4 + 6 + 1 + 2 + 2 + 1 + 6 + 0 + 6 + 24 = 58
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 58 = 22

The NPI number 1376628032 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1215015060 ARNOLD J. SPANJERS MD
Individual
Emergency Medicine2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1457503856MS. KATHERINE ANN MERRIMAN MS, R.D.
Individual
Dietitian, Registered2500 MERCED ST B3-FOOD AND NUTRITION SERVICES
SAN LEANDRO, CA 94577
(510) 390-2262
1396139374 JASMINE LAN PHARMD
Individual
Pharmacist2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1154357556 SUNYE KWACK VUONG M.D.
Individual
Internal Medicine (Pulmonary Disease)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1356429112 LESLIE GENDLER WILKOF M.D.
Individual
Obstetrics & Gynecology2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1356429120 LOUIS MARTIN EDELSON M.D.
Individual
Internal Medicine2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1467530212 JACQUELINE RICHARDS M.D.
Individual
Internal Medicine2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1881744605 ROSE ENG M.D.
Individual
Hospitalist2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1528000791 LINDA JANE TANG MD
Individual
Radiology (Diagnostic Radiology)2500 MERCED ST KAISER PERMANENTE DEPT OF RADIOLOGY
SAN LEANDRO, CA 94577
(510) 454-7507
1063517134 ANGELA LYNN SERPA N.P.
Individual
Nurse Practitioner (Adult Health)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1760588396 GEETA RAMDEV SINGH M.D.
Individual
Internal Medicine (Cardiovascular Disease)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1174601660 GEORGE FRANCIS BROWN IV M.D.
Individual
Emergency Medicine2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1235217092 ALICIA PAMELA SINCLAIR M.D.
Individual
Obstetrics & Gynecology2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1205914066 JILL DIANE SMITH FORSTER M.D.
Individual
Orthopaedic Surgery2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1275611030 RICHARD PATRICK CUMMINGS M.D.
Individual
Anesthesiology2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1891873667 SCOTT ALLEN ABRAMSON M.D.
Individual
Psychiatry & Neurology (Neurology)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1912085762 LEWIS DREW BAKER M.D.
Individual
Emergency Medicine2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1669550422 PAUL E. DYBBRO MD
Individual
Radiology (Vascular & Interventional Radiology)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-4715
1578641338 PAUL J. FISCH M.D.
Individual
Internal Medicine (Cardiovascular Disease)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000
1215016365 CYNTHIA EVE WIKLER M.D.
Individual
Pediatrics (Neonatal-Perinatal Medicine)2500 MERCED ST
SAN LEANDRO, CA 94577
(510) 454-1000

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1376628032, enumerated in the NPI registry as an "individual" on October 25, 2006

The provider is located at 2500 Merced St San Leandro, Ca 94577 and the phone number is (510) 454-1000

The provider's speciality is Emergency Medicine with taxonomy code 207P00000X

The provider has more than 28 years of experience. He graduated from Js Weill Medical College, Cornell University in 1998.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $104.51 with an average copayment of $26.12 for new patient appointments. Established patients should expect a typical charge of $119.48 and an average copayment of 29.87. Please review your insurance plan or contact the provider directly to determine your specific costs.

This NPI record was last updated on October 25, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.