KEITH HUYNH MD PA
NPI 1407901721
Internal Medicine in Cypress, TX

NPI Status: Active since January 25, 2007

Contact Information

21216 NORTHWEST FWY
SUITE 260
CYPRESS, TX
ZIP 77429
Phone: (281) 469-3221
Fax: (281) 970-6577

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  • Organization
  • Internal Medicine
  • Accepts Insurance

About KEITH HUYNH MD PA

This page provides the complete NPI Profile along with additional information for Keith Huynh Md Pa, an internist established in Cypress, Texas operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1407901721 assigned on January 2007. The practitioner's primary taxonomy code is 207R00000X with license number J5997 (TX). The provider is registered as an organization and their NPI record was last updated one year 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. Keith Anh Huynh M.d. (Owner)

NPI
1407901721
Provider Name
KEITH HUYNH MD PA
Entity Type
Organization
Location Address
21216 NORTHWEST FWY SUITE 260 CYPRESS, TX 77429
Location Phone
(281) 469-3221
Location Fax
(281) 970-6577
Mailing Address
21216 NORTHWEST FWY SUITE 260 CYPRESS, TX 77429
Mailing Phone
(281) 469-3221
Mailing Fax
(281) 970-6577
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-25-2007
Last Update Date
04-09-2025
Code Navigator

An internist like Keith Huynh Md Pa 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.
J5997
License State
TX
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.

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:

  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Choice Bronze HSA (QualChoice) - POS
  • Complete Gold - PPO
  • Complete Gold + Vision + Adult Dental - PPO
  • Connected Silver - PPO
  • Connected Silver (QualChoice) - POS
  • Connected Silver (QualChoice) + Vision + Adult Dental - POS
  • Connected Silver (QualChoiceLife) - PPO
  • Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
  • Connected Silver + Vision + Adult Dental - PPO
  • Elite Bronze - PPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete VALUE Gold - HMO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Focused VALUE Silver - HMO
  • Clarity VALUE Silver - HMO
  • Complete VALUE Gold - HMO
  • Elite VALUE Bronze - HMO
  • Focused VALUE Silver - HMO
  • Standard Expanded Bronze VALUE - HMO
  • Standard Gold VALUE - HMO
  • Standard Silver VALUE - HMO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Elite Gold - PPO
  • Elite Gold + Vision + Adult Dental - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Everyday Bronze - PPO
  • Everyday Bronze + Vision + Adult Dental - PPO

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. KEITH ANH HUYNH M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(281) 469-3221

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
122019601MEDICAID (05)TX 
0033CFOTHER (01)TXBLUECROSS BLUESHIELD

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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 1407901721, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
7
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 0 → 0 9 → 18 → 9 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 8 + 0 + 2 + 7 + 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 1407901721.

Other Providers at the Same Location


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

Physician Assistant (Medical)
21216 NORTHWEST FWY, SUITE 620
CYPRESS, TX 77429
Family Medicine
21216 NORTHWEST FWY, SUITE 620
CYPRESS, TX 77429
Family Medicine
21216 NORTHWEST FWY, SUITE 620
CYPRESS, TX 77429
Nurse Practitioner (Family)
21216 NORTHWEST FWY, STE. 460
CYPRESS, TX 77429
Urology
21216 NORTHWEST FWY, SUITE 440
CYPRESS, TX 77429
Plastic Surgery
21216 NORTHWEST FWY, SUITE 530
CYPRESS, TX 77429
General Practice
21216 NORTHWEST FWY, SUITE 260
CYPRESS, TX 77429
Obstetrics & Gynecology
21216 NORTHWEST FWY, STE 520
CYPRESS, TX 77429
Surgery
21216 NORTHWEST FWY, SUITE 540
CYPRESS, TX 77429
Thoracic Surgery (Cardiothoracic Vascular Surgery)
21216 NORTHWEST FWY, SUITE 680
CYPRESS, TX 77429
Durable Medical Equipment & Medical Supplies
21216 NORTHWEST FWY, SUITE 510
CYPRESS, TX 77429
Radiology (Radiation Oncology)
21216 NORTHWEST FWY, SUITE 110
CYPRESS, TX 77429
Counselor (Professional)
21216 NORTHWEST FWY, SUITE 450
CYPRESS, TX 77429
Thoracic Surgery (Cardiothoracic Vascular Surgery)
21216 NORTHWEST FWY, SUITE 680
CYPRESS, TX 77429
Audiologist
21216 NORTHWEST FWY, STE 310
CYPRESS, TX 77429
Internal Medicine (Geriatric Medicine)
21216 NORTHWEST FWY, SUITE 560
CYPRESS, TX 77429
Counselor (Professional)
21216 NORTHWEST FWY, SUITE 450
CYPRESS, TX 77429
Physician Assistant
21216 NORTHWEST FWY, SUITE 620
CYPRESS, TX 77429
Orthopaedic Surgery
21216 NORTHWEST FWY, SUITE 620
CYPRESS, TX 77429
Counselor (Mental Health)
21216 NORTHWEST FWY, SUITE 450
CYPRESS, TX 77429

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407901721, enumerated as an "organization" on January 25, 2007.

The provider is located at 21216 NORTHWEST FWY SUITE 260 CYPRESS, TX 77429 and the phone number is (281) 469-3221.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Ambetter from Arizona Complete Health, Ambetter. Please consult your insurance carrier or call the provider to verify.