MARK R GREENBAUM MD
NPI 1609882331
Emergency Medicine in Santa Cruz, CA

NPI Status: Active since August 01, 2006

Contact Information

2025 SOQUEL AVE
SANTA CRUZ, CA
ZIP 95062
Phone: (831) 458-5537

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  • Individual
  • Male
  • Years of Experience 45
  • Emergency Medicine
  • May Accept Medicare Approved Payment

About MARK GREENBAUM

This page provides the complete NPI Profile along with additional information for Mark Greenbaum, a provider established in Santa Cruz, California with a medical specialization in Emergency Medicine and more than 45 years of experience. He graduated from George Washington University School Of Medicine in 1981. The healthcare provider is registered in the NPI registry with number 1609882331 assigned on August 2006. The practitioner's primary taxonomy code is 207P00000X with license number G48834 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1609882331
Provider Name
MARK R GREENBAUM MD
Gender
Male
Entity Type
Individual
Location Address
2025 SOQUEL AVE SANTA CRUZ, CA 95062
Location Phone
(831) 458-5537
Mailing Address
325 DISTEL CIR LOS ALTOS, CA 94022
Mailing Phone
(831) 458-5524
Medical School Name
GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
1981
Is Sole Proprietor?
No
Enumeration Date
08-01-2006
Last Update Date
05-24-2021
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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.
G48834
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
00G488340MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Mark Greenbaum is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

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.

  • PECOS PAC ID: 6204833940

    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: I20061023000220

    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? Maybe

    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.

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen

This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.

This service was performed 22 times for 22 patients

Automated urinalysis test

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

This service was performed 35 times for 33 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 195 times for 190 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 58 times for 57 patients

Reviews for MARK R GREENBAUM MD

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1609882331, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
0
Doubled → 0
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
3
Unchanged
Pos 9
3
Doubled → 6
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 8 → 16 → 7 2 → 4 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 0 + 9 + 1 + 6 + 8 + 4 + 3 + 6 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1609882331.

Other Providers at the Same Location


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

Specialist
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine (Nephrology)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine (Endocrinology, Diabetes & Metabolism)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Radiology (Diagnostic Radiology)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine (Cardiovascular Disease)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine (Infectious Disease)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Pediatrics
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Optometrist
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Otolaryngology
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine (Pulmonary Disease)
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Internal Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Pediatrics
2025 SOQUEL AVE, DEPARTMENT OF PEDIATRICS
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Family Medicine
2025 SOQUEL AVE
SANTA CRUZ, CA 95062
Pediatrics
2025 SOQUEL AVE
SANTA CRUZ, CA 95062

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1609882331, enumerated as an "individual" on August 01, 2006.

The provider is located at 2025 SOQUEL AVE SANTA CRUZ, CA 95062 and the phone number is (831) 458-5537.

Emergency Medicine with taxonomy code 207P00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.