DR. RICHARD CLARENCE GEIS M.D.
NPI 1891756532
Surgery in Houston, TX

NPI Status: Active since March 31, 2006

Contact Information

6560 FANNIN ST
SUITE 1654
HOUSTON, TX
ZIP 77030
Phone: (713) 797-1211
Fax: (713) 795-9805

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  • Individual
  • Male
  • Surgery

About RICHARD GEIS

This page provides the complete NPI Profile along with additional information for Richard Geis, a provider established in Houston, Texas with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1891756532 assigned on March 2006. The practitioner's primary taxonomy code is 208600000X with license number C8979 (TX). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1891756532
Provider Name
DR. RICHARD CLARENCE GEIS M.D.
Gender
Male
Entity Type
Individual
Location Address
6560 FANNIN ST SUITE 1654 HOUSTON, TX 77030
Location Phone
(713) 797-1211
Location Fax
(713) 795-9805
Mailing Address
6560 FANNIN ST SUITE 1654 HOUSTON, TX 77030
Mailing Phone
(713) 797-1211
Mailing Fax
(713) 795-9805
Is Sole Proprietor?
Yes
Enumeration Date
03-31-2006
Last Update Date
09-22-2010
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A surgeon like Richard Geis treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

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

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
C8979
License State
TX
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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)
1208G00000XAllopathic & Osteopathic Physicians

Thoracic Surgery (Cardiothoracic Vascular Surgery)

C8979 (TX)

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
C16036MEDICARE UPIN (02) 
C16036MEDICARE UPIN (02)TX 
0433955-01MEDICAID (05)TX 
84E976MEDICARE PIN (08) 

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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 1891756532, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
2
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 9 → 18 → 9 7 → 14 → 5 6 → 12 → 3 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 4 + 5 + 1 + 2 + 5 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1891756532.

Other Providers at the Same Location


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

Psychiatry & Neurology (Psychiatry)
6560 FANNIN ST, STE 1616
HOUSTON, TX 77030
Internal Medicine (Nephrology)
6560 FANNIN ST, SUITE 1532
HOUSTON, TX 77030
Internal Medicine (Gastroenterology)
6560 FANNIN ST, STE 2000
HOUSTON, TX 77030
Obstetrics & Gynecology
6560 FANNIN ST, STE 1840
HOUSTON, TX 77030
Orthopaedic Surgery
6560 FANNIN ST, SUITE 1016
HOUSTON, TX 77030
Specialist
6560 FANNIN ST, SUITE 2020
HOUSTON, TX 77030
Physician Assistant (Surgical)
6560 FANNIN ST, STE 1402
HOUSTON, TX 77030
Neurological Surgery
6560 FANNIN ST, 1200
HOUSTON, TX 77030
Neurological Surgery
6560 FANNIN ST, SUITE 1200
HOUSTON, TX 77030
Internal Medicine
6560 FANNIN ST, SUITE 1112
HOUSTON, TX 77030
Neurological Surgery
6560 FANNIN ST, SUITE 1200
HOUSTON, TX 77030
Neurological Surgery
6560 FANNIN ST, SUITE 1200
HOUSTON, TX 77030
Urology
6560 FANNIN ST, SUITE 2030
HOUSTON, TX 77030
Urology
6560 FANNIN ST, STE 1270
HOUSTON, TX 77030
Registered Nurse (Otorhinolaryngology & Head-Neck)
6560 FANNIN ST, STE 704
HOUSTON, TX 77030
Plastic Surgery
6560 FANNIN ST, #1760
HOUSTON, TX 77030
Internal Medicine (Nephrology)
6560 FANNIN ST, SUITE 1532
HOUSTON, TX 77030
Ophthalmology
6560 FANNIN ST, SUITE 2200
HOUSTON, TX 77030
Internal Medicine (Nephrology)
6560 FANNIN ST, SUITE 2204
HOUSTON, TX 77030
Specialist
6560 FANNIN ST, SUITE 1008
HOUSTON, TX 77030

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891756532, enumerated as an "individual" on March 31, 2006.

The provider is located at 6560 FANNIN ST SUITE 1654 HOUSTON, TX 77030 and the phone number is (713) 797-1211.

Surgery with taxonomy code 208600000X.

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