DR. DONNA P. HAMMEL-DAVIS M.D.
NPI 1023166683
Family Medicine in Yorba Linda, CA

NPI Status: Active since January 08, 2007

Contact Information

24475 PASEO DE TORONTO
YORBA LINDA, CA
ZIP 92887
Phone: (714) 299-2525
Fax: (714) 692-8401

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  • Individual
  • Female
  • Family Medicine

About DONNA HAMMEL-DAVIS

This page provides the complete NPI Profile along with additional information for Donna Hammel-davis, a primary care provider established in Yorba Linda, California with a medical specialization in Family Medicine. The healthcare provider is registered in the NPI registry with number 1023166683 assigned on January 2007. The practitioner's primary taxonomy code is 207Q00000X with license number C36533 (CA). The provider is registered as an individual and her NPI record was last updated 13 years ago.

NPI
1023166683
Provider Name
DR. DONNA P. HAMMEL-DAVIS M.D.
Other Name
DR. DONNA P. DAVIS CAPT,MC,USN (RC)
Other Name Type
Other Name (5)
Gender
Female
Entity Type
Individual
Location Address
24475 PASEO DE TORONTO YORBA LINDA, CA 92887
Location Phone
(714) 299-2525
Location Fax
(714) 692-8401
Mailing Address
PO BOX 27995 ANAHEIM, CA 92809
Mailing Phone
(714) 606-0737
Mailing Fax
(714) 692-8401
Is Sole Proprietor?
Yes
Enumeration Date
01-08-2007
Last Update Date
11-05-2013
Code Navigator

A primary care provider (PCP) like Donna Hammel-davis sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
License No.
C36533
License State
CA
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

123058 (NY)
2207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

40754-020 (WI)

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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 1023166683, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
0
Unchanged
Pos 3
2
Doubled → 4
Pos 4
3
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
3
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 2 → 4 1 → 2 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 2 + 6 + 1 + 2 + 6 + 1 + 6 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1023166683.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1023166683, enumerated as an "individual" on January 08, 2007.

The provider is located at 24475 PASEO DE TORONTO YORBA LINDA, CA 92887 and the phone number is (714) 299-2525.

Family Medicine with taxonomy code 207Q00000X.