CATHERINE VIRGINIA DAVIS MD
NPI 1497748776
Internal Medicine in Santa Rosa, CA

NPI Status: Active since August 23, 2005

Contact Information

500 DOYLE PARK DR
STE G03
SANTA ROSA, CA
ZIP 95405
Phone: (707) 544-3411
Fax: (707) 544-0834

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  • Individual
  • Female
  • Internal Medicine
  • PECOS Enrolled

About CATHERINE DAVIS

This page provides the complete NPI Profile along with additional information for Catherine Davis, an internist established in Santa Rosa, California with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1497748776 assigned on August 2005. The practitioner's primary taxonomy code is 207R00000X with license number G70242 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1497748776
Provider Name
CATHERINE VIRGINIA DAVIS MD
Gender
Female
Entity Type
Individual
Location Address
500 DOYLE PARK DR STE G03 SANTA ROSA, CA 95405
Location Phone
(707) 544-3411
Location Fax
(707) 544-0834
Mailing Address
3536 MENDOCINO AVE STE 200 SANTA ROSA, CA 95403
Mailing Phone
(707) 575-6049
Mailing Fax
(707) 544-0834
Is Sole Proprietor?
No
Enumeration Date
08-23-2005
Last Update Date
10-21-2021
Code Navigator

An internist like Catherine Davis 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

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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
G70242
License State
CA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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.

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
00G702420MEDICAID (05)CA 
P00420857OTHER (01)CARAILROAD MEDICARE
00G702420OTHER (01)BLUE SHIELD OF CALIFORNIA

Medicare Participation & PECOS Enrollment Status

Catherine Davis 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: Durable Medical Equipment (DME) 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

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No

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

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    14 DME suppliers used 36 Medicare Claims 90 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    2 DME suppliers used 14 Medicare Claims 14 Services Paid

  • DME-Other DME (DE017N)

    Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service (HCPCS:K0553)

    6 DME suppliers used 265 Medicare Claims 265 Services Paid

  • DME-Other DME (DE017N)

    Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system (HCPCS:K0554)

    2 DME suppliers used 27 Medicare Claims 27 Services Paid

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.

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report

This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.

This service was performed 154 times for 62 patients

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment

This process involves a tiny sensor placed under your skin that checks your blood sugar levels in tissue fluid regularly. The sensor sends these readings to a device, allowing you to track your levels in real-time. This is provided by your healthcare provider.

This service was performed 18 times for 17 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 16 times for 14 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 136 times for 76 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 113 times for 61 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 56 times for 56 patients

Physician Visit Costs

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 95405 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $142
  • Minimum New Patient Price $63.04
  • Maximum New Patient Price $187.01
  • Average New Patient Copayment $35.5
  • 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.

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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 1497748776, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 9 → 18 → 9 7 → 14 → 5 8 → 16 → 7 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 4 + 4 + 1 + 6 + 7 + 1 + 4 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1497748776.

Other Providers at the Same Location


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

Internal Medicine
500 DOYLE PARK DR, STE G03
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, STE G03
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, STE G03
SANTA ROSA, CA 95405
Internal Medicine (Cardiovascular Disease)
500 DOYLE PARK DR, SUITE 205
SANTA ROSA, CA 95405
Internal Medicine (Cardiovascular Disease)
500 DOYLE PARK DR, SUITE 205
SANTA ROSA, CA 95405
Pediatrics
500 DOYLE PARK DR, STE 200
SANTA ROSA, CA 95405
Nurse Practitioner (Pediatrics)
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405
Nurse Practitioner (Pediatrics)
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405
Pediatrics
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405
Nurse Practitioner (Family)
500 DOYLE PARK DR, SUITE 200
SANTA ROSA, CA 95405
Nurse Practitioner (Pediatrics)
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405
Nurse Practitioner (Family)
500 DOYLE PARK DR, SUITE 200
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, SUITE 304
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, SUITE 304
SANTA ROSA, CA 95405
Internal Medicine
500 DOYLE PARK DR, STE G03
SANTA ROSA, CA 95405
Family Medicine
500 DOYLE PARK DR, SUITE G-04
SANTA ROSA, CA 95405
Nurse Practitioner (Family)
500 DOYLE PARK DR, SUITE 103
SANTA ROSA, CA 95405
Thoracic Surgery (Cardiothoracic Vascular Surgery)
500 DOYLE PARK DR, SUITE G-05
SANTA ROSA, CA 95405
Pediatrics
500 DOYLE PARK DR, SUITE 100
SANTA ROSA, CA 95405
Family Medicine
500 DOYLE PARK DR, SUITE G04
SANTA ROSA, CA 95405

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497748776, enumerated as an "individual" on August 23, 2005.

The provider is located at 500 DOYLE PARK DR STE G03 SANTA ROSA, CA 95405 and the phone number is (707) 544-3411.

Internal Medicine with taxonomy code 207R00000X.

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