Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JOHN ALEXANDER MD
NPI 1336126176
Internal Medicine in Evanston, IL

Active since December 22, 2005Opted out of Medicare · through Apr 29, 2028
633 EMERSON ST, EVANSTON, IL 60208(847) 491-8100(847) 491-8100 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About John Alexander Md NPPES

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

JOHN ALEXANDER MD (NPI 1336126176) is an individual internal medicine provider in Evanston, Illinois and active in the NPI registry since December 2005. He has opted out of Medicare through April 29, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1336126176
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJOHN ALEXANDERCredential: MD
Location Address633 EMERSON STEvanston, IL 60208-0844
Mailing Address733 Maclean AveKenilworth, IL 60043-1033 · (847) 256-7787 · Fax (847) 491-5919
Fax(847) 491-8100
Sole ProprietorNo
Enumeration DateDecember 22, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1336126176 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.

633 EMERSON ST, Evanston, IL 60208

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

John Alexander Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 29, 2016 through April 29, 2028.

Opt-Out Effective DateApril 29, 2016
Opt-Out In Effect ThroughApril 29, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60208 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

Family Medicine (Sports Medicine)
633 EMERSON ST
EVANSTON, IL 60208
Internal Medicine
633 EMERSON ST
EVANSTON, IL 60208
Specialist/Technologist (Athletic Trainer)
633 EMERSON ST
EVANSTON, IL 60208
Psychiatry & Neurology (Psychiatry)
633 EMERSON ST
EVANSTON, IL 60208
Family Medicine (Sports Medicine)
633 EMERSON ST
EVANSTON, IL 60208
Nurse Practitioner
633 EMERSON ST
EVANSTON, IL 60208
Internal Medicine
633 EMERSON ST
EVANSTON, IL 60208
Specialist/Technologist (Athletic Trainer)
633 EMERSON ST
EVANSTON, IL 60208

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 John Alexander's NPI number?

The NPI number for John Alexander is 1336126176. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Where is John Alexander located?

John Alexander practices at 633 Emerson St, Evanston, IL 60208. The listed phone number is (847) 491-8100.

What is John Alexander's specialty?

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

Is John Alexander enrolled in Medicare?

No. John Alexander has opted out of Medicare through April 29, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for John Alexander was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.