MARY LEANNE RAMOS COLBURN DO
NPI 1518617729
Family Medicine in Fresno, CA

NPI Status: Active since March 29, 2022

Contact Information

155 N FRESNO ST
FRESNO, CA
ZIP 93701
Phone: (559) 499-6450

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NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Female
  • Family Medicine

About MARY LEANNE COLBURN

This page provides the complete NPI Profile along with additional information for Mary Leanne Colburn, a primary care provider established in Fresno, California with a medical specialization in Family Medicine. The healthcare provider is registered in the NPI registry with number 1518617729 assigned on March 2022. The practitioner's primary taxonomy code is 207Q00000X with license number 20A22042 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1518617729
Provider Name
MARY LEANNE RAMOS COLBURN DO
Gender
Female
Entity Type
Individual
Location Address
155 N FRESNO ST FRESNO, CA 93701
Location Phone
(559) 499-6450
Mailing Address
645 S MINNEWAWA AVE FRESNO, CA 93727
Mailing Phone
(800) 492-4227
Is Sole Proprietor?
Yes
Enumeration Date
03-29-2022
Last Update Date
01-09-2026
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A primary care provider (PCP) like Mary Leanne Colburn 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.
20A22042
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.

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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 1518617729, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
5
Unchanged
Pos 3
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
Check
9
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 1 → 2 6 → 12 → 3 7 → 14 → 5 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 1 + 2 + 1 + 1 + 4 + 7 + 4 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1518617729.

Other Providers at the Same Location


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

Emergency Medicine
155 N FRESNO ST, UCSF-FRESNO DEPT OF EMERGENCY MEDICINE
FRESNO, CA 93701
Psychiatry & Neurology (Psychiatry)
155 N FRESNO ST
FRESNO, CA 93701
Pharmacist
155 N FRESNO ST, 251
FRESNO, CA 93701
Specialist
155 N FRESNO ST
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST
FRESNO, CA 93701
Emergency Medicine
155 N FRESNO ST
FRESNO, CA 93701
Emergency Medicine
155 N FRESNO ST
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST
FRESNO, CA 93701
General Acute Care Hospital
155 N FRESNO ST, INTERNAL MEDICINE
FRESNO, CA 93701
Family Medicine
155 N FRESNO ST
FRESNO, CA 93701
General Acute Care Hospital
155 N FRESNO ST
FRESNO, CA 93701
Emergency Medicine
155 N FRESNO ST, DEPARTMENT OF EMERGENCY MEDICINE
FRESNO, CA 93701
Psychiatry & Neurology (Psychiatry)
155 N FRESNO ST
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST
FRESNO, CA 93701
Pediatrics
155 N FRESNO ST, SUITE 251
FRESNO, CA 93701
Internal Medicine
155 N FRESNO ST, SUITE # 307
FRESNO, CA 93701
Emergency Medicine
155 N FRESNO ST, UCSF FRESNO DEPARTMENT OF EMERGENCY MEDICINE
FRESNO, CA 93701
Emergency Medicine
155 N FRESNO ST
FRESNO, CA 93701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518617729, enumerated as an "individual" on March 29, 2022.

The provider is located at 155 N FRESNO ST FRESNO, CA 93701 and the phone number is (559) 499-6450.

Family Medicine with taxonomy code 207Q00000X.