DAVID A GREENE MD
NPI 1104802594
Internal Medicine - Geriatric Medicine in Santa Rosa, CA

NPI Status: Active since December 19, 2005

Contact Information

5555 MONTGOMERY DR
SANTA ROSA, CA
ZIP 95409
Phone: (707) 579-6957
Fax: (707) 579-6979

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  • Individual
  • Male
  • Years of Experience 48
  • Internal Medicine
  • Geriatric Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About DAVID GREENE

This page provides the complete NPI Profile along with additional information for David Greene, an internist established in Santa Rosa, California with a medical specialization in Internal Medicine, focusing in geriatric medicine and more than 48 years of experience. He graduated from Michigan State University College Of Human Medicine in 1978. The healthcare provider is registered in the NPI registry with number 1104802594 assigned on December 2005. The practitioner's primary taxonomy code is 207RG0300X with license number C148038 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1104802594
Provider Name
DAVID A GREENE MD
Gender
Male
Entity Type
Individual
Location Address
5555 MONTGOMERY DR SANTA ROSA, CA 95409
Location Phone
(707) 579-6957
Location Fax
(707) 579-6979
Mailing Address
3536 MENDOCINO AVE STE 200 SANTA ROSA, CA 95403
Mailing Phone
(707) 579-6957
Mailing Fax
(707) 579-6979
Medical School Name
MICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduation Year
1978
Is Sole Proprietor?
No
Enumeration Date
12-19-2005
Last Update Date
06-22-2021
Code Navigator

An internist like David Greene is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 3536 Mendocino Ave Ste 300
    Santa Rosa, CA 95403
    (707) 579-6957

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

Internal Medicine Geriatric Medicine

Taxonomy Code
207RG0300X
Type
Allopathic & Osteopathic Physicians
License No.
C148038
License State
CA
Taxonomy Description
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

20639 (KY)

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
64206394MEDICAID (05)KY 

Medicare Participation & PECOS Enrollment Status

David Greene 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.

David Greene 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: 4486796729

    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: I20210128003027

    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

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.

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 510 times for 110 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 51 times for 34 patients

Follow-up nursing facility visit per day, typically 15 minutes

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

This service was performed 49 times for 21 patients

Follow-up nursing facility visit per day, typically 25 minutes

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

This service was performed 148 times for 33 patients

Initial nursing facility visit per day, typically 45 minutes

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

This service was performed 14 times for 14 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $46.75 for a new patient copayment and $27.47 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 95409 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99205

  • Average New Patient Price $187.01
  • Minimum New Patient Price $63.04
  • Maximum New Patient Price $187.01
  • Average New Patient Copayment $46.75
  • Minimum New Patient Copayment $15.76
  • Maximum New Patient Copayment $46.75

Established Patients Visit Costs *

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

  • Average Established Patient Price $109.88
  • Minimum Established Patient Price $21.02
  • Maximum Established Patient Price $153.4
  • Average Established Patient Copayment $27.47
  • Minimum Established Patient Copayment $5.25
  • Maximum Established Patient Copayment $38.35

* 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 DAVID A GREENE 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 1104802594, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 6 + 0 + 4 + 5 + 1 + 8 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1104802594.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Internal Medicine
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Physical Therapy Assistant
5555 MONTGOMERY DR, SPRING LAKE VILLAGE SKILLED NURSING FACILITY
SANTA ROSA, CA 95409
Internal Medicine (Geriatric Medicine)
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Internal Medicine (Geriatric Medicine)
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Skilled Nursing Facility
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Family Medicine (Geriatric Medicine)
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Skilled Nursing Facility
5555 MONTGOMERY DR
SANTA ROSA, CA 95409
Occupational Therapist
5555 MONTGOMERY DR
SANTA ROSA, CA 95409

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104802594, enumerated as an "individual" on December 19, 2005.

The provider is located at 5555 MONTGOMERY DR SANTA ROSA, CA 95409 and the phone number is (707) 579-6957.

Internal Medicine with taxonomy code 207RG0300X and a focus in Geriatric Medicine.

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