ROGER ALLEN SPENCER MD
NPI 1861423121
Obstetrics & Gynecology - Maternal & Fetal Medicine in San Jose, CA

NPI Status: Active since July 05, 2006

Contact Information

751 S BASCOM AVE
OB/GYN DEPT
SAN JOSE, CA
ZIP 95128
Phone: (408) 885-5550

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  • Individual
  • Male
  • Obstetrics & Gynecology
  • Maternal & Fetal Medicine

About ROGER SPENCER

This page provides the complete NPI Profile along with additional information for Roger Spencer, a women's health care provider established in San Jose, California with a medical specialization in Obstetrics & Gynecology, focusing in maternal & fetal medicine . The healthcare provider is registered in the NPI registry with number 1861423121 assigned on July 2006. The practitioner's primary taxonomy code is 207VM0101X with license number G23444 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1861423121
Provider Name
ROGER ALLEN SPENCER MD
Gender
Male
Entity Type
Individual
Location Address
751 S BASCOM AVE OB/GYN DEPT SAN JOSE, CA 95128
Location Phone
(408) 885-5550
Mailing Address
14960 QUITO RD LOS GATOS, CA 95032
Mailing Phone
(408) 354-4359
Is Sole Proprietor?
No
Enumeration Date
07-05-2006
Last Update Date
02-27-2012
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Women's health care providers like Roger Spencer treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, 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

Obstetrics & Gynecology Maternal & Fetal Medicine

Taxonomy Code
207VM0101X
Type
Allopathic & Osteopathic Physicians
License No.
G23444
License State
CA
Taxonomy Description
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.

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)
1207V00000XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology

G23444 (CA)

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
A41950MEDICARE UPIN (02)CA 
00G234440MEDICAID (05)CA 
00G234440MEDICARE ID-TYPE UNSPECIFIED (04)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 1861423121, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
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 6 → 12 → 3 4 → 8 3 → 6 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 8 + 2 + 6 + 1 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1861423121.

Other Providers at the Same Location


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

Nurse Practitioner
751 S BASCOM AVE, LABOR & DELIVERY
SAN JOSE, CA 95128
Internal Medicine
751 S BASCOM AVE, HOSPITAL ADMINISTRATION
SAN JOSE, CA 95128
Pediatrics
751 S BASCOM AVE
SAN JOSE, CA 95128
Obstetrics & Gynecology
751 S BASCOM AVE, DEPARTMENT OF OB/GYN
SAN JOSE, CA 95128
Pediatrics (Pediatric Endocrinology)
751 S BASCOM AVE
SAN JOSE, CA 95128
Pathology (Anatomic Pathology)
751 S BASCOM AVE, PATHOLOGY DEPT
SAN JOSE, CA 95128
Pathology (Anatomic Pathology & Clinical Pathology)
751 S BASCOM AVE, PATHOLOGY DEPT
SAN JOSE, CA 95128
Pediatrics
751 S BASCOM AVE, PEDIATRICS DEPT
SAN JOSE, CA 95128
Pediatrics
751 S BASCOM AVE, PEDIATRICS DEPT
SAN JOSE, CA 95128
Psychologist (Forensic)
751 S BASCOM AVE, MAIN JAIL-PSYCHOLOGY
SAN JOSE, CA 95128
Anesthesiology
751 S BASCOM AVE, ANESTHESIOLOGY DEPT
SAN JOSE, CA 95128
Obstetrics & Gynecology
751 S BASCOM AVE, OB/GYN DEPT
SAN JOSE, CA 95128
Physician Assistant (Surgical)
751 S BASCOM AVE
SAN JOSE, CA 95128
Internal Medicine
751 S BASCOM AVE, MEDICAL ADMINISTRATION
SAN JOSE, CA 95128
Internal Medicine
751 S BASCOM AVE, URGENT CARE CLINIC
SAN JOSE, CA 95128
Internal Medicine
751 S BASCOM AVE, INTERNAL MEDICINE DEPT
SAN JOSE, CA 95128
Anesthesiology
751 S BASCOM AVE, ANESTHESIOLOGY DEPT
SAN JOSE, CA 95128
Internal Medicine
751 S BASCOM AVE, DEPT OF MEDICINE
SAN JOSE, CA 95128
Anesthesiology
751 S BASCOM AVE, ANESTHESIOLOGY DEPT
SAN JOSE, CA 95128
Radiology (Diagnostic Radiology)
751 S BASCOM AVE, DIAGOSTIC IMAGING DEPT
SAN JOSE, CA 95128

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861423121, enumerated as an "individual" on July 05, 2006.

The provider is located at 751 S BASCOM AVE OB/GYN DEPT SAN JOSE, CA 95128 and the phone number is (408) 885-5550.

Obstetrics & Gynecology with taxonomy code 207VM0101X and a focus in Maternal & Fetal Medicine.

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