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DR. STEFAN G KAROS M.D.
NPI 1376530378
Urology in Leominster, MA

Active since October 04, 2005PECOS EnrolledAccepts Medicare Assignment
50 MEMORIAL DR, SUITE 104, LEOMINSTER, MA 01453(978) 466-4075 Get Directions Write a Review

NPPES record last updated: June 18, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Stefan G Karos M.d. NPPES

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

DR. STEFAN G KAROS M.D. (NPI 1376530378) is an individual urology provider in Leominster, Massachusetts, licensed in Massachusetts (73838) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1376530378
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. STEFAN G KAROSCredential: M.D.
Location Address50 MEMORIAL DR, SUITE 104Leominster, MA 01453-2238
Mailing Address50 Memorial Dr, Suite 104Leominster, MA 01453-2238 · (978) 798-1418
Phone(978) 466-4075
Sole ProprietorYes
Medical School CMSOtherGraduated 1986
Enumeration DateOctober 4, 2005
Last NPPES UpdateJune 18, 2021
NPPES CertifiedJune 18, 2021
✔ NPI 1376530378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in MA · 73838
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
50 MEMORIAL DR, Leominster, MA 01453
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Other Identifiers 4

Other4427MA · Fallon
Medicaid9713930MA
Other073838MA · Tufts
Medicaid3079465MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Dr. Stefan G Karos M.d. 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 ID8224069315
PECOS Enrollment IDI20050829000568
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 7

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 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.
128 services79 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
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.
55 services49 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
51 services51 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
24 services23 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
16 services16 patients
Diagnostic exam of bladder and urethra using an endoscope 52000
This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.
14 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Umass Memorial Healthalliance Hospitals

Acute Care Hospitals · Leominster, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220001
Location60 Hospital RoadLeominster, MA 01453 · Worcester County
Emergency services

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01453 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

COORDINATED PRIMARY CARE INC
Internal Medicine
50 MEMORIAL DR, SUITE 210
LEOMINSTER, MA 01453
Worcester County (978) 466-2339
THOMAS J. SCORNAVACCA, JR.
Family Medicine
50 MEMORIAL DR, SUITE 103
LEOMINSTER, MA 01453
Worcester County (978) 534-8607
DONALD S. LEVINE, M.D. , P.C..
Internal Medicine (Endocrinology, Diabetes & Metabolism)
50 MEMORIAL DR, SUITE 110
LEOMINSTER, MA 01453
Worcester County (978) 840-1388
JIE YIN MD
Psychiatry & Neurology (Neurology)
50 MEMORIAL DR, SUITE 209
LEOMINSTER, MA 01453
Worcester County (978) 466-2411
LLOYD M. ALDERSON M.D.
Psychiatry & Neurology (Neurology)
50 MEMORIAL DR, SUITE 211
LEOMINSTER, MA 01453
Worcester County (978) 466-2411
SUN MEDICAL CLINIC, PC
Clinic/Center (Health Service)
50 MEMORIAL DR, SUITE 110
LEOMINSTER, MA 01453
Worcester County (978) 840-0055
CHEONG H. KIM, MD, INC.
Plastic Surgery (Plastic Surgery Within the Head and Neck)
50 MEMORIAL DR, SUITE 212
LEOMINSTER, MA 01453
Worcester County (978) 537-8377
COORDINATED PRIMRARY CARE INC
Clinic/Center (Physical Therapy)
50 MEMORIAL DR, SUITE 211
LEOMINSTER, MA 01453
Worcester County (978) 537-3355

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 Stefan Karos's NPI number?

The NPI number for Stefan Karos is 1376530378. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Where is Stefan Karos located?

Stefan Karos practices at 50 Memorial Dr Suite 104, Leominster, MA 01453. The listed phone number is (978) 466-4075.

What is Stefan Karos's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Stefan Karos enrolled in Medicare?

Yes. Stefan Karos 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 Stefan Karos accept?

Health plans from Anthem Blue Cross and Blue Shield list Stefan Karos 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 Stefan Karos affiliated with any hospitals?

According to CMS data, Stefan Karos is affiliated with Umass Memorial Healthalliance Hospitals and Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Stefan Karos was last updated on June 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.