MR. GREGORY CHARLES GRAHEK NP-BC
NPI 1558554188
Nurse Practitioner - Acute Care in Pueblo, CO

NPI Status: Active since August 27, 2007

Contact Information

1619 N GREENWOOD ST STE 208
PUEBLO, CO
ZIP 81003
Phone: (719) 564-4336
Fax: (719) 561-8469

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  • Individual
  • Male
  • Years of Experience 19
  • Nurse Practitioner
  • Acute Care
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GREGORY GRAHEK

This page provides the complete NPI Profile along with additional information for Gregory Grahek, a provider established in Pueblo, Colorado with a medical specialization in Nurse Practitioner, focusing in acute care and more than 19 years of experience. The healthcare provider is registered in the NPI registry with number 1558554188 assigned on August 2007. The practitioner's primary taxonomy code is 363LA2100X with license number 173720-5414 (CO). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1558554188
Provider Name
MR. GREGORY CHARLES GRAHEK NP-BC
Gender
Male
Entity Type
Individual
Location Address
1619 N GREENWOOD ST STE 208 PUEBLO, CO 81003
Location Phone
(719) 564-4336
Location Fax
(719) 561-8469
Mailing Address
1619 N GREENWOOD ST STE 208 PUEBLO, CO 81003
Mailing Phone
(719) 671-4629
Mailing Fax
(719) 561-8469
Medical School Name
OTHER
Graduation Year
2007
Is Sole Proprietor?
No
Enumeration Date
08-27-2007
Last Update Date
01-07-2025
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A nurse practitioner (NP) like Gregory Grahek is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Acute Care

Taxonomy Code
363LA2100X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
173720-5414
License State
CO

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)
1363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

5441 (CO)

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
333409528MEDICAID (05)CO 
RXN 08-123OTHER (01)COSTATE RXN

Medicare Participation & PECOS Enrollment Status

Gregory Grahek 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 Grahek 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), a Home Health Agency (HHA) and Power Mobility Devices.

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: 4981798873

    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: I20070924000065

    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: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    16 DME suppliers used 64 Medicare Claims 136 Services Paid

  • DME-Medical/Surgical Supplies (DA000N)

    Lancets, per box of 100 (HCPCS:A4259)

    11 DME suppliers used 31 Medicare Claims 38 Services Paid

  • DME-Other DME (DE001N)

    Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)

    4 DME suppliers used 13 Medicare Claims 13 Services Paid

  • DME-Other DME (DE001N)

    Full face mask used with positive airway pressure device, each (HCPCS:A7030)

    5 DME suppliers used 21 Medicare Claims 21 Services Paid

  • DME-Other DME (DE001N)

    Face mask interface, replacement for full face mask, each (HCPCS:A7031)

    4 DME suppliers used 18 Medicare Claims 48 Services Paid

  • DME-Other DME (DE001N)

    Headgear used with positive airway pressure device (HCPCS:A7035)

    5 DME suppliers used 13 Medicare Claims 13 Services Paid

  • DME-Other DME (DE001N)

    Tubing used with positive airway pressure device (HCPCS:A7037)

    5 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Other DME (DE001N)

    Filter, disposable, used with positive airway pressure device (HCPCS:A7038)

    5 DME suppliers used 27 Medicare Claims 145 Services Paid

  • DME-Other DME (DE001N)

    Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)

    5 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)

    1 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable oxygen contents, gaseous, 1 month's supply = 1 unit (HCPCS:E0443)

    2 DME suppliers used 13 Medicare Claims 13 Services Paid

  • DME-Other DME (DE005N)

    Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) (HCPCS:E0466)

    2 DME suppliers used 25 Medicare Claims 26 Services Paid

  • DME-Other DME (DE001N)

    Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0470)

    1 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Other DME (DE001N)

    Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)

    2 DME suppliers used 16 Medicare Claims 16 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    5 DME suppliers used 28 Medicare Claims 28 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    4 DME suppliers used 65 Medicare Claims 65 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Portable oxygen concentrator, rental (HCPCS:E1392)

    1 DME suppliers used 12 Medicare Claims 12 Services Paid

  • DME-Other DME (DE017N)

    Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service (HCPCS:K0553)

    5 DME suppliers used 45 Medicare Claims 45 Services Paid

Orthotic Devices

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, with flange (solid, flexible or accordion), with built-in convexity, any size, each (HCPCS:A4373)

    2 DME suppliers used 11 Medicare Claims 220 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, pectin-based, paste, per ounce (HCPCS:A4406)

    2 DME suppliers used 13 Medicare Claims 26 Services Paid

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $22.35 for a new patient copayment and $25.5 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 81003 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $89.43
  • Minimum New Patient Price $58.06
  • Maximum New Patient Price $174.82
  • Average New Patient Copayment $22.35
  • Minimum New Patient Copayment $14.51
  • Maximum New Patient Copayment $43.7

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $102.03
  • Minimum Established Patient Price $18.88
  • Maximum Established Patient Price $142.79
  • Average Established Patient Copayment $25.5
  • Minimum Established Patient Copayment $4.72
  • Maximum Established Patient Copayment $35.69

* 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 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 1558554188, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
1
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
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 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 1 + 0 + 5 + 8 + 1 + 1 + 6 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1558554188.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Nurse Practitioner (Family)
1619 N GREENWOOD ST STE 208
PUEBLO, CO 81003
Nurse Practitioner (Family)
1619 N GREENWOOD ST STE 208
PUEBLO, CO 81003
Clinic/Center (Occupational Medicine)
1619 N GREENWOOD ST STE 208
PUEBLO, CO 81003
Family Medicine
1619 N GREENWOOD ST STE 208
PUEBLO, CO 81003
Family Medicine
1619 N GREENWOOD ST STE 208
PUEBLO, CO 81003

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558554188, enumerated as an "individual" on August 27, 2007.

The provider is located at 1619 N GREENWOOD ST STE 208 PUEBLO, CO 81003 and the phone number is (719) 564-4336.

Nurse Practitioner with taxonomy code 363LA2100X and a focus in Acute Care.

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