ROBERT ROGERS SCHAEFER M.D.
NPI 1346233632
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
  • Male
  • Internal Medicine

About ROBERT SCHAEFER

This page provides the complete NPI Profile along with additional information for Robert Schaefer, 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 1346233632 assigned on August 2005. The practitioner's primary taxonomy code is 207R00000X with license number G22776 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1346233632
Provider Name
ROBERT ROGERS SCHAEFER M.D.
Gender
Male
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) 525-6485
Mailing Fax
(707) 544-0834
Is Sole Proprietor?
No
Enumeration Date
08-23-2005
Last Update Date
08-30-2007
Code Navigator

An internist like Robert Schaefer 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.
G22776
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.

*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
A41715MEDICARE UPIN (02) 
00G227760OTHER (01)BLUE SHIELD OF CALIFORNIA
00G227760MEDICAID (05)CA 
00G227760MEDICARE PIN (08)CA 
00G227762MEDICARE PIN (08)CA 

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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 1346233632, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
3
Unchanged
Pos 3
4
Doubled → 8
Pos 4
6
Unchanged
Pos 5
2
Doubled → 4
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
Check
2
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 4 → 8 2 → 4 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 8 + 6 + 4 + 3 + 6 + 6 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1346233632.

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 (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
Internal Medicine
500 DOYLE PARK DR, SUITE 300
SANTA ROSA, CA 95405

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346233632, 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 and Blue Cross Blue Shield. Please consult your insurance carrier or call the provider to verify.