MOSAB ABDULBASET FREFER MD
NPI 1659800977
Internal Medicine in Tucson, AZ

Active since June 09, 2017PECOS EnrolledAccepts Medicare Assignment
1100 N EL DORADO PL, TUCSON, AZ 85715(520) 526-2068(520) 526-2071 Get Directions Write a Review

NPPES record last updated: March 26, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 26, 2026, Jul 21, 2022, Dec 14, 2020 and 1 more (4 updates tracked since 2017).

About Mosab Abdulbaset Frefer Md NPPES

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

MOSAB ABDULBASET FREFER MD (NPI 1659800977) is an individual internal medicine provider in Tucson, Arizona, licensed in Arizona (60805) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Brooklyn, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1659800977
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMOSAB ABDULBASET FREFERCredential: MD
Location Address1100 N EL DORADO PLTucson, AZ 85715-4606
Mailing Address603 N Wilmot Rd Ste 201Tucson, AZ 85711-2701 · (520) 790-1556 · Fax (520) 620-9719
Fax(520) 526-2071
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 9, 2017
Last NPPES UpdateMarch 26, 20264 updates tracked since enumeration
NPPES CertifiedMarch 26, 2026
NPI 1659800977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in AZ · 60805
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.

1100 N EL DORADO PL, Tucson, AZ 85715

Secondary Practice Location 1

Location 1450 Clarkson Ave # 1262Brooklyn, NY 11203-2012 · Phone (718) 270-8867

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

Mosab Abdulbaset Frefer 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 ID244659696
PECOS Enrollment IDI20201004000003
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 16

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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
916 services164 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
845 services105 patients
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.
367 services71 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
293 services89 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
192 services79 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
178 services155 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85715 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
5 suppliers50 claims50 services$15.31 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
5 suppliers50 claims50 services$70.55 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 9

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

Urology
1100 N EL DORADO PL
TUCSON, AZ 85715
Internal Medicine
1100 N EL DORADO PL
TUCSON, AZ 85715
Nurse Practitioner
1100 N EL DORADO PL
TUCSON, AZ 85715
Specialist
1100 N EL DORADO PL
TUCSON, AZ 85715
Urology
1100 N EL DORADO PL
TUCSON, AZ 85715
Internal Medicine
1100 N EL DORADO PL
TUCSON, AZ 85715
Urology (Pediatric Urology)
1100 N EL DORADO PL
TUCSON, AZ 85715
Urology
1100 N EL DORADO PL
TUCSON, AZ 85715

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 Mosab Frefer's NPI number?

The NPI number for Mosab Frefer is 1659800977. It was assigned to this individual provider in the NPPES registry on June 9, 2017.

Where is Mosab Frefer located?

Mosab Frefer practices at 1100 N El Dorado Pl, Tucson, AZ 85715. The listed phone number is (520) 526-2068.

What is Mosab Frefer's specialty?

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

Is Mosab Frefer enrolled in Medicare?

Yes. Mosab Frefer 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 Mosab Frefer accept?

Health plans from Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona and Imperial Insurance Companies, Inc. list Mosab Frefer 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.

When was this NPI record last updated?

The NPPES record for Mosab Frefer was last updated on March 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.