JEFFREY B WEEKS M.D.
NPI 1780663435
Ophthalmology in Greeley, CO

NPI Status: Active since January 11, 2006

Contact Information

1931 65TH AVE
SUITE C
GREELEY, CO
ZIP 80634
Phone: (970) 352-1877
Fax: (970) 356-9274

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NPPES record last updated: October 30, 2007. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Male
  • Ophthalmology
  • Medicare Quality Reporting

About JEFFREY WEEKS

This page provides the complete NPI Profile along with additional information for Jeffrey Weeks, a provider established in Greeley, Colorado with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1780663435 assigned on January 2006. The practitioner's primary taxonomy code is 207W00000X with license number 25144 (CO). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1780663435
Provider Name
JEFFREY B WEEKS M.D.
Gender
Male
Entity Type
Individual
Location Address
1931 65TH AVE SUITE C GREELEY, CO 80634
Location Phone
(970) 352-1877
Location Fax
(970) 356-9274
Mailing Address
1931 65TH AVE SUITE C GREELEY, CO 80634
Mailing Phone
(970) 352-1877
Mailing Fax
(970) 356-9274
Is Sole Proprietor?
No
Enumeration Date
01-11-2006
Last Update Date
10-30-2007
Code Navigator

Ophthalmologists like Jeffrey Weeks specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
25144
License State
CO
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

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
01251446MEDICAID (05)CO 

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Diabetes: Eye Exam 100% 40
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

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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 1780663435, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 6 + 0 + 1 + 2 + 6 + 6 + 4 + 6 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1780663435.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Podiatrist
1931 65TH AVE, STE A
GREELEY, CO 80634
Podiatrist
1931 65TH AVE, STE A
GREELEY, CO 80634
Ophthalmology
1931 65TH AVE, STE C
GREELEY, CO 80634
Ophthalmology
1931 65TH AVE, #C
GREELEY, CO 80634
Technician/Technologist (Optician)
1931 65TH AVE, SUITE C
GREELEY, CO 80634
Ophthalmology
1931 65TH AVE, STE C
GREELEY, CO 80634
Ophthalmology
1931 65TH AVE, #C
GREELEY, CO 80634
Durable Medical Equipment & Medical Supplies (Customized Equipment)
1931 65TH AVE, SUITE C
GREELEY, CO 80634
Ophthalmology
1931 65TH AVE, SUITE C
GREELEY, CO 80634
Physical Therapist
1931 65TH AVE
GREELEY, CO 80634

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1780663435, enumerated as an "individual" on January 11, 2006.

The provider is located at 1931 65TH AVE SUITE C GREELEY, CO 80634 and the phone number is (970) 352-1877.

Ophthalmology with taxonomy code 207W00000X.

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