NATHAN MAHLER M.D.
NPI 1679009294
Internal Medicine in Riverside, CA

Active since May 02, 2017PECOS EnrolledAccepts Medicare Assignment
4445 MAGNOLIA AVE, GME OFFICE, RIVERSIDE, CA 92501(951) 788-3000 Get Directions Write a Review

NPPES record last updated: July 22, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Nathan Mahler M.d. NPPES

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

NATHAN MAHLER M.D. (NPI 1679009294) is an individual internal medicine provider in Riverside, California, licensed in West Virginia (30584) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White All Saints Medical Center Fort Worth, and is a graduate of Ohio State University College Of Medicine (2017).

NPPES Registry Identity

NPI1679009294
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameNATHAN MAHLERCredential: M.D.
Location Address4445 MAGNOLIA AVE, GME OFFICERiverside, CA 92501-4135
Mailing Address4445 Magnolia Ave, Gme OfficeRiverside, CA 92501-4135 · (951) 788-3000
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 2017
Enumeration DateMay 2, 2017
Last NPPES UpdateJuly 22, 2021
NPPES CertifiedJuly 22, 2021
NPI 1679009294 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 WV · 30584
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.
4445 MAGNOLIA AVE, Riverside, CA 92501

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

Nathan Mahler 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 ID7416291869
PECOS Enrollment IDI20230510002927
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 2

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.

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.
152 services152 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
86 services83 patients

Hospital Affiliations CMS Care Compare 4

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

Baylor Scott & White All Saints Medical Center Fort Worth

Acute Care Hospitals · Fort Worth, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450137
Location1400 Eighth AveFort Worth, TX 76104 · Tarrant County
Birthing friendly

Hendrick Medical Center

Acute Care Hospitals · Abilene, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450229
Location1900 PineAbilene, TX 79601 · Taylor County
Emergency services Birthing friendly

Baylor Scott & White Medical Center- Waxahachie

Acute Care Hospitals · Waxahachie, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450372
Location2400 N Interstate Highway 35EWaxahachie, TX 75165 · Ellis County
Emergency services Birthing friendly

Baylor Scott And White Emergency Hospital

Acute Care Hospitals · Burleson, TX
OwnershipProprietary
CMS Certification Number670107
Location12500 South Freeway Suite 100Burleson, TX 76028 · Johnson County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92501 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

Physician Assistant
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Hospitalist
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Radiology (Diagnostic Radiology)
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Emergency Medicine
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501

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 Nathan Mahler's NPI number?

The NPI number for Nathan Mahler is 1679009294. It was assigned to this individual provider in the NPPES registry on May 2, 2017.

Where is Nathan Mahler located?

Nathan Mahler practices at 4445 Magnolia Ave Gme Office, Riverside, CA 92501. The listed phone number is (951) 788-3000.

What is Nathan Mahler's specialty?

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

Is Nathan Mahler enrolled in Medicare?

Yes. Nathan Mahler 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 Nathan Mahler accept?

Health plans from Baylor Scott and White Health Plan and Blue Cross and Blue Shield of Texas list Nathan Mahler 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 Nathan Mahler affiliated with any hospitals?

According to CMS data, Nathan Mahler is affiliated with Baylor Scott & White All Saints Medical Center Fort Worth, Hendrick Medical Center, Baylor Scott & White Medical Center- Waxahachie and Baylor Scott And White Emergency Hospital.

When was this NPI record last updated?

The NPPES record for Nathan Mahler was last updated on July 22, 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.