DR. GREGORY S KOENIG O.D.
NPI 1255301388
Optometrist in Fernley, NV

NPI Status: Active since January 23, 2006

Contact Information

415 US HIGHWAY 95A S
SUITE 101
FERNLEY, NV
ZIP 89408
Phone: (775) 575-1966
Fax: (775) 575-1967

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  • Individual
  • Male
  • Years of Experience 30
  • Optometrist
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GREGORY KOENIG

This page provides the complete NPI Profile along with additional information for Gregory Koenig, a provider established in Fernley, Nevada with a medical specialization in Optometrist and more than 30 years of experience. He graduated from Pacific University - College Of Optometry in 1996. The healthcare provider is registered in the NPI registry with number 1255301388 assigned on January 2006. The practitioner's primary taxonomy code is 152W00000X with license number 321 (NV). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1255301388
Provider Name
DR. GREGORY S KOENIG O.D.
Gender
Male
Entity Type
Individual
Location Address
415 US HIGHWAY 95A S SUITE 101 FERNLEY, NV 89408
Location Phone
(775) 575-1966
Location Fax
(775) 575-1967
Mailing Address
415 US HIGHWAY 95A S SUITE 101 FERNLEY, NV 89408
Mailing Phone
(775) 575-1966
Mailing Fax
(775) 575-1967
Medical School Name
PACIFIC UNIVERSITY - COLLEGE OF OPTOMETRY
Graduation Year
1996
Is Sole Proprietor?
No
Enumeration Date
01-23-2006
Last Update Date
06-10-2008
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
321
License State
NV
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Choice Preferred Bronze PPO? 201 - PPO
  • Blue Choice Preferred Bronze PPO? 701 - PPO
  • Blue Choice Preferred Bronze PPO? Standard - Select Rx Copays - PPO
  • Blue Choice Preferred Gold PPO? 204 - PPO
  • Blue Choice Preferred Gold PPO? Standard - Rx Copays - PPO
  • Blue Choice Preferred Security PPO? 200 - PPO
  • Blue Choice Preferred Silver PPO? 203 - PPO
  • Blue Choice Preferred Silver PPO? 801 - PPO
  • Blue Choice Preferred Silver PPO? Standard - Select Rx Copays - PPO
  • Blue Precision Bronze HMO? 205 - HMO
  • Blue Max 70/50 $6700 - PPO
  • Blue Max 90/70 $1500 - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $3300 - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan - PPO
  • Blue Max Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan - PPO
  • Blue Saver 60/40 $6100 - PPO
  • Blue Saver 90/70 $3200 - PPO
  • Blue Focus Bronze POS? 205 - POS
  • Blue Focus Bronze POS? 705 - POS
  • Blue Focus Bronze POS? Standard - POS
  • Blue Focus Gold POS? 207 - POS
  • Blue Focus Gold POS? Standard - POS
  • Blue Focus Silver POS? 206 - POS
  • Blue Focus Silver POS? Standard - POS
  • Blue Preferred Bronze PPO? 201 - PPO
  • Blue Preferred Bronze PPO? 202 - PPO
  • Blue Preferred Bronze PPO? Standard - PPO
  • Blue Advantage Bronze PPO? 202 - PPO
  • Blue Advantage Bronze PPO? 203 - PPO
  • Blue Advantage Bronze PPO? Standard - PPO
  • Blue Advantage Gold PPO? 309 - PPO
  • Blue Advantage Gold PPO? 604 - PPO
  • Blue Advantage Gold PPO? Standard - PPO
  • Blue Advantage Silver PPO? 204 - PPO
  • Blue Advantage Silver PPO? 501 - PPO
  • Blue Advantage Silver PPO? Standard - PPO
  • Blue Preferred Bronze PPO? Standard - PPO
  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • BlueSelect Bronze Basic - PPO
  • BlueSelect Bronze Core - PPO
  • BlueSelect Expanded Bronze Standard without Kid's Dental - PPO
  • BlueSelect Gold Core - PPO
  • BlueSelect Gold HealthPlus - PPO
  • BlueSelect Gold Standard without Kid's Dental - PPO
  • BlueSelect Silver Classic - PPO
  • BlueSelect Silver Classic without Kid's Dental - PPO
  • BlueSelect Silver HealthPlus - PPO
  • BlueSelect Silver HealthPlus without Kid's 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.

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
V34954MEDICARE PIN (08)NV 
U63264MEDICARE UPIN (02)NV 
4117010001MEDICARE NSC (07)NV 
002501100MEDICAID (05)NV 

Medicare Participation & PECOS Enrollment Status

Gregory Koenig is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gregory Koenig is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9335137652

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20110912000403

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: No

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient complete exam of visual system

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

This service was performed 11 times for 11 patients

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 102 times for 89 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 88 times for 67 patients

Established patient problem focused exam of visual system

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

This service was performed 79 times for 79 patients

Evaluation of eye adaptation to light and dark

This procedure checks how your eyes adjust to different light conditions. In a dimly lit room, your eyes are first exposed to bright light. Then, the lights are turned off to see how quickly your eyes adapt to darkness. This helps identify any potential vision problems.

This service was performed 42 times for 34 patients

Imaging of retina

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

This service was performed 76 times for 54 patients

New patient office or other outpatient visit, 15-29 minutes

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

This service was performed 37 times for 37 patients

New patient problem focused exam of visual system

A new patient problem-focused exam of the visual system is a basic evaluation of your eyes and vision. It includes checking your eye movements, visual acuity, and general eye health. It helps detect any potential issues early for timely treatment.

This service was performed 38 times for 38 patients

Photography of the retina

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

This service was performed 28 times for 24 patients

Removal of cataract with insertion of prosthetic lens

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

This service was performed 64 times for 51 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $32.81 for a new patient copayment and $17.78 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 89408 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $131.25
  • Minimum New Patient Price $57.07
  • Maximum New Patient Price $173.24
  • Average New Patient Copayment $32.81
  • Minimum New Patient Copayment $14.26
  • Maximum New Patient Copayment $43.31

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $71.14
  • Minimum Established Patient Price $18.27
  • Maximum Established Patient Price $140.96
  • Average Established Patient Copayment $17.78
  • Minimum Established Patient Copayment $4.56
  • Maximum Established Patient Copayment $35.24

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1255301388
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
22105602316
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 1 + 0 + 5 + 6 + 0 + 2 + 3 + 1 + 6 + 24 = 52
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 52 = 88

The NPI number 1255301388 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1659341782DR. CARL D ROBERTSON O.D.
Individual
Optometrist415 US HIGHWAY 95A S SUITE 101
FERNLEY, NV 89408
(775) 575-1966
1699745059ROBERTSON & KOENIG, LTD
Organization
Optometrist415 US HIGHWAY 95A S SUITE 101
FERNLEY, NV 89408
(775) 575-1966
1679883805 PAM RAMIREZ RN
Individual
Registered Nurse (Psychiatric/Mental Health)415 US HIGHWAY 95A S STE I 901
FERNLEY, NV 89408
(775) 575-7744
1376845388 STEPHANIE J LASHUK
Individual
Rehabilitation Counselor415 US HIGHWAY 95A S STE I 901
FERNLEY, NV 89408
(775) 575-7744
1750683769 NANCY JO RUSSELL
Individual
Case Manager/Care Coordinator415 US HIGHWAY 95A S STE I 901
FERNLEY, NV 89408
(775) 575-7744
1891132163 TAMARA SHANNON MUSSER CADC
Individual
Counselor (Addiction (Substance Use Disorder))415 US HIGHWAY 95A S SUITE E-501
FERNLEY, NV 89408
(775) 575-6191
1851738124MR. STEVEN R HENDERSON CADC
Individual
Counselor (Addiction (Substance Use Disorder))415 US HIGHWAY 95A S SUITE E-501
FERNLEY, NV 89408
(775) 575-6191
1700272390 GLENDA DAZEY
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S BUILDING 1
FERNLEY, NV 89408
(775) 575-7744
1710360714ATLAS COUNSELING CENTER, LLC
Organization
Community/Behavioral Health415 US HIGHWAY 95A S SUITE 702G
FERNLEY, NV 89408
(775) 575-2284
1235518473KRISTINA J RHODES OD LTD
Organization
Optometrist415 US HIGHWAY 95A S UNIT A
FERNLEY, NV 89408
(775) 575-5700
1356715551 DEBRA RIDGEWAY CADC #01895-I
Individual
Counselor (Addiction (Substance Use Disorder))415 US HIGHWAY 95A S SUITE 501
FERNLEY, NV 89408
(775) 463-6597
1730546714MRS. TRINA CASTONGUAY
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S SUITE 702G
FERNLEY, NV 89408
(775) 575-2284
1790143154 ALYSSA CAROLINE PEACOCK
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S SUITE G702
FERNLEY, NV 89408
(775) 575-2284
1053771451 ALEXANDRA JOHNSON
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S SUITE 702G
FERNLEY, NV 89408
(775) 575-2284
1003354663 SUSAN GODDARD
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S SUITE 702G
FERNLEY, NV 89408
(775) 575-2284
1356880488 JANICE DU TA B.A.
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S SUITE 702G
FERNLEY, NV 89408
(775) 575-2284
1588202584 TESSA STINE MCMHC, CPC, I
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S
FERNLEY, NV 89408
(775) 575-2144
1912090721FAE OF FERNLEY, INC.
Organization
Assisted Living Facility (Assisted Living, Behavioral Disturbances)415 US HIGHWAY 95A S SUITE D-401
FERNLEY, NV 89408
(775) 575-2320
1982050761 JENNIFER BROWN
Individual
Rehabilitation Counselor415 US HIGHWAY 95A S
FERNLEY, NV 89408
(775) 575-2284
1760143507 NAARA SILVER
Individual
Counselor (Mental Health)415 US HIGHWAY 95A S
FERNLEY, NV 89408
(775) 847-9311

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255301388, enumerated in the NPI registry as an "individual" on January 23, 2006

The provider is located at 415 Us Highway 95a S Suite 101 Fernley, Nv 89408 and the phone number is (775) 575-1966

The provider's speciality is Optometrist with taxonomy code 152W00000X

The provider has more than 30 years of experience. He graduated from Pacific University - College Of Optometry in 1996.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Illinois, Blue Cross. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).

Medicare beneficiaries should expect a typical cost of $131.25 with an average copayment of $32.81 for new patient appointments. Established patients should expect a typical charge of $71.14 and an average copayment of 17.78. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Established patient complete exam of visual system, Established patient office or other outpatient visit, 10-19 minutes, Established patient office or other outpatient visit, 20-29 minutes, Established patient problem focused exam of visual system, Evaluation of eye adaptation to light and dark, Imaging of retina, New patient office or other outpatient visit, 15-29 minutes, New patient problem focused exam of visual system, Photography of the retina and Removal of cataract with insertion of prosthetic lens.

This NPI record was last updated on January 23, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.