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TIFFANY A. KARAS MD
NPI 1013993336
Internal Medicine - Endocrinology, Diabetes & Metabolism in Geneva, IL

Active since December 19, 2005PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
302 RANDALL RD, GENEVA, IL 60134(630) 208-6775(630) 208-7937 Get Directions Write a Review

NPPES record last updated: April 9, 2013. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Tiffany A. Karas Md NPPES

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

TIFFANY A. KARAS MD (NPI 1013993336) is an individual endocrinology, diabetes & metabolism provider in Geneva, Illinois, licensed in Illinois (036-109127) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Southern Illinois University School Of Medicine (2000).

NPPES Registry Identity

NPI1013993336
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameTIFFANY A. KARASCredential: MD
Location Address302 RANDALL RDGeneva, IL 60134-4209
Mailing Address302 Randall RdGeneva, IL 60134-4209 · (630) 208-6775 · Fax (630) 208-7937
Phone(630) 208-6775
Fax(630) 208-7937
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 2000
Enumeration DateDecember 19, 2005
Last NPPES UpdateApril 9, 2013
✔ NPI 1013993336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in IL · 036-109127
Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

302 RANDALL RD, Geneva, IL 60134
Open in Google Maps ↗

Other Names 1

Former Name (1)Tiffany A. Thies Md

Other Identifiers 7

OtherP01144156IL · Railroad Medicare Individual Ptan
Medicaid036109127IL
Medicare UPINI46300
Medicare UPINK23065IL
Other206147IL · Medicare Ptan (group)
Other206147108IL · Medicare Ptan (individual)
Other036-109127IL · Il State License #

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

Tiffany A. Karas Md 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 ID3971523804
PECOS Enrollment IDI20051206000899
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 10

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,680 services16 patients
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.
486 services254 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.
329 services161 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
219 services91 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
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.
71 services70 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
32 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140030
Location1425 North Randall RoadElgin, IL 60123 · Kane County
Emergency services Birthing friendly

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140211
Location300 Randall RdGeneva, IL 60134 · Kane County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Northwestern Medicine Kishwaukee Hospital

Acute Care Hospitals · Dekalb, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140286
LocationOne Kish Hospital DriveDekalb, IL 60115 · De Kalb County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60134 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 9

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
9 suppliers52 claims649 services$17.82 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
9 suppliers49 claims1,655 services$2.33 avg. paid by Medicare
Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238
DME-Medical/Surgical Supplies · category DA000N
4 suppliers33 claims33 services$172.98 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
50 suppliers234 claims1,058 services$5.99 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
25 suppliers70 claims165 services$1.03 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
2 suppliers23 claims23 services$308.82 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 20

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

GASTROINTESTINAL HEALTH ASSOCIATES
Internal Medicine (Gastroenterology)
302 RANDALL RD, SUITE 308
GENEVA, IL 60134
Kane County (630) 208-7388
DR. PAUL M GEKAS M.D.
Internal Medicine (Gastroenterology)
302 RANDALL RD, SUITE 308
GENEVA, IL 60134
Kane County (630) 208-7388
FOX VALLEY ENDOCRINOLOGY, LLC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
302 RANDALL RD, SUITE 304
GENEVA, IL 60134
Kane County (630) 208-6775
ANDREW BREGMAN MD
Internal Medicine (Gastroenterology)
302 RANDALL RD, STE 303
GENEVA, IL 60134
Kane County (630) 262-7400
TERRY DALE WEST MD
Family Medicine
302 RANDALL RD, SUITE 205
GENEVA, IL 60134
Kane County (630) 232-4224
DR. CHARLES CLARK KALLSTROM D.D.S.
Dentist (General Practice)
302 RANDALL RD, SUITE # 105
GENEVA, IL 60134
Kane County (630) 232-7385
DEAN PAUL BIENIAK PA-C
Physician Assistant
302 RANDALL RD, SUITE 202
GENEVA, IL 60134
Kane County (630) 232-1818
CHRISTOPHER FAHEY M.D.
Family Medicine
302 RANDALL RD, SUITE 202
GENEVA, IL 60134
Kane County (630) 232-1818

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 Tiffany Karas's NPI number?

The NPI number for Tiffany Karas is 1013993336. It was assigned to this individual provider in the NPPES registry on December 19, 2005. The provider is also known as Tiffany A. Thies MD.

Where is Tiffany Karas located?

Tiffany Karas practices at 302 Randall Rd, Geneva, IL 60134. The listed phone number is (630) 208-6775.

What is Tiffany Karas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Tiffany Karas enrolled in Medicare?

Yes. Tiffany Karas 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.

Is Tiffany Karas affiliated with any hospitals?

According to CMS data, Tiffany Karas is affiliated with Advocate Sherman Hospital, Northwestern Medicine Mchenry, Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Medicine Kishwaukee Hospital.

When was this NPI record last updated?

The NPPES record for Tiffany Karas was last updated on April 9, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.