SHANNON MCALLISTER GREGOREK NP-C
NPI 1790929099
Nurse Practitioner - Family in Houston, TX

Active since April 30, 2009PECOS EnrolledAccepts Medicare Assignment
9539 HUFFMEISTER RD, HOUSTON, TX 77095(832) 593-8100(832) 593-8105 Get Directions Write a Review

NPPES record last updated: May 12, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Shannon Mcallister Gregorek Np-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHANNON MCALLISTER GREGOREK NP-C (NPI 1790929099) is an individual family provider in Houston, Texas, licensed in Texas (671422) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, is affiliated with Memorial Hermann - Texas Medical Center, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1790929099
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameSHANNON MCALLISTER GREGOREKCredential: NP-C
Location Address9539 HUFFMEISTER RDHouston, TX 77095-2856
Mailing Address9539 Huffmeister RdHouston, TX 77095-2856 · (832) 593-8100 · Fax (932) 593-8105
Fax(832) 593-8105
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateApril 30, 2009
Last NPPES UpdateMay 12, 2016
NPI 1790929099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in TX · 671422
9539 HUFFMEISTER RD, Houston, TX 77095

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Shannon Mcallister Gregorek Np-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800942137
PECOS Enrollment IDI20090928000664
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
364 services138 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
255 services107 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
252 services106 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
234 services100 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
227 services91 patients
Thyroxine (thyroid chemical), free 84439
The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.
172 services76 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hermann - Texas Medical Center

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450068
Location6411 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
20 suppliers48 claims263 services$5.88 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers19 claims44 services$1.07 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
9 suppliers154 claims154 services$191.55 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Medicine & Rehabilitation (Pain Medicine)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Physician Assistant
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Internal Medicine (Endocrinology, Diabetes & Metabolism)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Internal Medicine (Endocrinology, Diabetes & Metabolism)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Internal Medicine (Endocrinology, Diabetes & Metabolism)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Psychiatry & Neurology (Psychiatry)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Psychiatry & Neurology (Psychiatry)
9539 HUFFMEISTER RD
HOUSTON, TX 77095
Dietitian, Registered
9539 HUFFMEISTER RD
HOUSTON, TX 77095

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shannon Gregorek's NPI number?

The NPI number for Shannon Gregorek is 1790929099. It was assigned to this individual provider in the NPPES registry on April 30, 2009.

Where is Shannon Gregorek located?

Shannon Gregorek practices at 9539 Huffmeister Rd, Houston, TX 77095. The listed phone number is (832) 593-8100.

What is Shannon Gregorek's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Shannon Gregorek enrolled in Medicare?

Yes. Shannon Gregorek is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Shannon Gregorek accept?

Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Blue Cross and Blue Shield of Texas, Community Health Choice and Molina Healthcare and 1 other insurer list Shannon Gregorek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Shannon Gregorek affiliated with any hospitals?

According to CMS data, Shannon Gregorek is affiliated with Memorial Hermann - Texas Medical Center and Hca Houston Healthcare Kingwood.

When was this NPI record last updated?

The NPPES record for Shannon Gregorek was last updated on May 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.