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DR. MAZIN FATTOUHI M.D.
NPI 1639519309
Internal Medicine in Long Grove, IL

Active since June 26, 2013PECOS EnrolledAccepts Medicare Assignment
3880 SALEM LAKE DR, F, LONG GROVE, IL 60047(847) 719-2220(847) 719-2265 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 7, 2023, Dec 19, 2021, Aug 18, 2017 and 1 more (4 updates tracked since 2016).

About Dr. Mazin Fattouhi M.d. NPPES

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

DR. MAZIN FATTOUHI M.D. (NPI 1639519309) is an individual internal medicine provider in Long Grove, Illinois, licensed in Illinois (036139567) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1639519309
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MAZIN FATTOUHICredential: M.D.
Location Address3880 SALEM LAKE DR, FLong Grove, IL 60047-5292
Mailing Address3880 Salem Lake Dr, FLong Grove, IL 60047-5292 · (847) 719-2220 · Fax (847) 719-2265
Phone(847) 719-2220
Fax(847) 719-2265
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateJune 26, 2013
Last NPPES UpdateMarch 7, 20234 updates tracked since enumeration
NPPES CertifiedDecember 19, 2021
✔ NPI 1639519309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036139567
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 036139567 (IL)
3880 SALEM LAKE DR, Long Grove, IL 60047
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Other Identifiers 1

Medicaid1639519309IL

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. Mazin Fattouhi 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 ID840432266
PECOS Enrollment IDI20160613000631
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 8

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
6,658 services2,060 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
1,606 services1,403 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.
1,173 services1,088 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
302 services298 patients
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes 99236
This service involves a brief hospital stay for a serious health issue. Patients are admitted and discharged on the same day, typically within 55 minutes. It allows for close monitoring and immediate treatment, ensuring optimal care.
88 services87 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
71 services71 patients

Hospital Affiliations CMS Care Compare 5

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

Advocate Condell Medical Center

Acute Care Hospitals · Libertyville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140202
Location801 S Milwaukee AveLibertyville, IL 60048 · Lake County
Emergency services Birthing friendly

Advocate Lutheran General Hospital

Acute Care Hospitals · Park Ridge, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140223
Location1775 Dempster StPark Ridge, IL 60068 · Cook County
Emergency services Birthing friendly

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140252
Location800 W Central RoadArlington Heights, IL 60005 · Cook County
Emergency services Birthing friendly

Advocate Good Shepherd Hospital

Acute Care Hospitals · Barrington, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140291
Location450 West Highway 22Barrington, IL 60010 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60047 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.

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.

MAREK FILIPIUK M.D.
Internal Medicine
3880 SALEM LAKE DR, STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
KELLY KEH LIH TAN M.D.
Internal Medicine
3880 SALEM LAKE DR, STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
BRYN J JEMMI PA-C
Physician Assistant (Medical)
3880 SALEM LAKE DR
LONG GROVE, IL 60047
Lake County (847) 719-2220
DR. IRENE GRAZIANI MD, PHD
Internal Medicine
3880 SALEM LAKE DR, STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
SUNDEEP KAUR GREWAL D.O.
Internal Medicine
3880 SALEM LAKE DR, STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
BRENDA SUE SNYDER D.O.
Internal Medicine
3880 SALEM LAKE DR, SUITE F
LONG GROVE, IL 60047
Lake County (847) 719-2220
DR. AVA MASTNY M.D.
Hospitalist
3880 SALEM LAKE DR, F
LONG GROVE, IL 60047
Lake County (847) 719-2220
KEVIN GO MD
Internal Medicine
3880 SALEM LAKE DR, STE F
LONG GROVE, IL 60047
Lake County (847) 719-2220

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 Mazin Fattouhi's NPI number?

The NPI number for Mazin Fattouhi is 1639519309. It was assigned to this individual provider in the NPPES registry on June 26, 2013.

Where is Mazin Fattouhi located?

Mazin Fattouhi practices at 3880 Salem Lake Dr F, Long Grove, IL 60047. The listed phone number is (847) 719-2220.

What is Mazin Fattouhi's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mazin Fattouhi enrolled in Medicare?

Yes. Mazin Fattouhi 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 Mazin Fattouhi affiliated with any hospitals?

According to CMS data, Mazin Fattouhi is affiliated with Advocate Illinois Masonic Medical Center, Advocate Condell Medical Center, Advocate Lutheran General Hospital, Northwest Community Hospital 1 and Advocate Good Shepherd Hospital.

When was this NPI record last updated?

The NPPES record for Mazin Fattouhi was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.