MARK T. FAHLEN, MD, INC. A PROFESSIONAL MEDICAL CORPORATION
NPI 1659537264
Internal Medicine - Nephrology in Modesto, CA

NPI Status: Active since August 03, 2008

Contact Information

1400 FLORIDA AVE
SUITE 109
MODESTO, CA
ZIP 95350
Phone: (209) 544-2910
Fax: (209) 544-2253

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  • Organization
  • Internal Medicine
  • Nephrology

About MARK T. FAHLEN, MD, INC. A PROFESSIONAL MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for Mark T. Fahlen, Md, Inc. A Professional Medical Corporation, an internist established in Modesto, California operating as a Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1659537264 assigned on August 2008. The practitioner's primary taxonomy code is 207RN0300X with license number A81212 (CA). The provider is registered as an organization and their NPI record was last updated 15 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Mark Theodore Fahlen M.d. (President)

NPI
1659537264
Provider Name
MARK T. FAHLEN, MD, INC. A PROFESSIONAL MEDICAL CORPORATION
Entity Type
Organization
Location Address
1400 FLORIDA AVE SUITE 109 MODESTO, CA 95350
Location Phone
(209) 544-2910
Location Fax
(209) 544-2253
Mailing Address
1400 FLORIDA AVE SUITE 109 MODESTO, CA 95350
Mailing Phone
(209) 544-2910
Mailing Fax
(209) 544-2253
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-03-2008
Last Update Date
08-02-2011
Code Navigator

An internist like Mark T. Fahlen, Md, Inc. A Professional Medical Corporation 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 Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
A81212
License State
CA
Taxonomy Description
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. MARK THEODORE FAHLEN M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(209) 544-2910

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
H85858MEDICARE UPIN (02)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 1659537264, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
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 5 → 10 → 1 5 → 10 → 1 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 0 + 3 + 1 + 4 + 2 + 1 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1659537264.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine (Nephrology)
1400 FLORIDA AVE, SUITE 109
MODESTO, CA 95350
Specialist
1400 FLORIDA AVE, SUITE 110
MODESTO, CA 95350
Neurological Surgery
1400 FLORIDA AVE, STE 104
MODESTO, CA 95350
Advanced Practice Midwife
1400 FLORIDA AVE
MODESTO, CA 95350
Advanced Practice Midwife
1400 FLORIDA AVE, STE. 207
MODESTO, CA 95350
Obstetrics & Gynecology
1400 FLORIDA AVE, STE. 207
MODESTO, CA 95350
Substance Abuse Rehabilitation Facility
1400 FLORIDA AVE, SUITE 107
MODESTO, CA 95350
Preferred Provider Organization
1400 FLORIDA AVE, SUITE 205 A
MODESTO, CA 95350
Student in an Organized Health Care Education/Training Program
1400 FLORIDA AVE
MODESTO, CA 95350
Student in an Organized Health Care Education/Training Program
1400 FLORIDA AVE
MODESTO, CA 95350
Advanced Practice Midwife
1400 FLORIDA AVE, STE. 207
MODESTO, CA 95350
Obstetrics & Gynecology
1400 FLORIDA AVE, SUITE 207
MODESTO, CA 95350
Student in an Organized Health Care Education/Training Program
1400 FLORIDA AVE
MODESTO, CA 95350
Orthopaedic Surgery
1400 FLORIDA AVE, SUITE 8
MODESTO, CA 95350
Student in an Organized Health Care Education/Training Program
1400 FLORIDA AVE
MODESTO, CA 95350
Family Medicine
1400 FLORIDA AVE
MODESTO, CA 95350
Family Medicine
1400 FLORIDA AVE
MODESTO, CA 95350
Student in an Organized Health Care Education/Training Program
1400 FLORIDA AVE
MODESTO, CA 95350
Family Medicine
1400 FLORIDA AVE, STE 102
MODESTO, CA 95350

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659537264, enumerated as an "organization" on August 03, 2008.

The provider is located at 1400 FLORIDA AVE SUITE 109 MODESTO, CA 95350 and the phone number is (209) 544-2910.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.

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