Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN DERZIS DO
NPI 1366138729
Internal Medicine in Birmingham, AL

Active since April 17, 2023PECOS Enrolled
817 PRINCETON AVE SW STE 210, BIRMINGHAM, AL 35211(205) 592-1406(205) 592-1705 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 7, 2026, Feb 4, 2026 (2 updates tracked since 2026).

About Dr. John Derzis Do NPPES

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

DR. JOHN DERZIS DO (NPI 1366138729) is an individual internal medicine provider in Birmingham, Alabama, licensed in Alabama (1366138729) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, maintains a secondary practice location in Birmingham, and is a graduate of Edward Via Col Of Osteo Medicine-virginia Campus (2023).

NPPES Registry Identity

NPI1366138729
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN DERZISCredential: DO
Location Address817 PRINCETON AVE SW STE 210Birmingham, AL 35211-1348
Mailing Address3500 Blue Lake Dr Ste 495Vestavia, AL 35243-1975 · (205) 592-1406 · Fax (205) 592-1705
Fax(205) 592-1705
Sole ProprietorNo
Medical School CMSEdward Via Col Of Osteo Medicine-virginia CampusGraduated 2023
Enumeration DateApril 17, 2023
Last NPPES UpdateAugust 7, 20262 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
NPI 1366138729 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 AL · 1366138729
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.
817 PRINCETON AVE SW STE 210, Birmingham, AL 35211

Secondary Practice Location 1

Location 1833 Princeton Ave SWBirmingham, AL 35211-1323 · Phone (205) 783-7694

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. John Derzis Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9335621358
PECOS Enrollment IDI20260306003633
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 35211 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
$122.31 typical visit price
range $52.65 – $161.63
Typical copayment $30.57 (range $13.16 – $40.40)
Most-billed visit code 99204
Established Patient
$93.72 typical visit price
range $16.56 – $131.65
Typical copayment $23.43 (range $4.14 – $32.91)
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 5

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

Internal Medicine
817 PRINCETON AVE SW STE 210
BIRMINGHAM, AL 35211
Student in an Organized Health Care Education/Training Program
817 PRINCETON AVE SW STE 210
BIRMINGHAM, AL 35211
Internal Medicine
817 PRINCETON AVE SW STE 210
BIRMINGHAM, AL 35211
Internal Medicine
817 PRINCETON AVE SW STE 210
BIRMINGHAM, AL 35211
Internal Medicine
817 PRINCETON AVE SW STE 210
BIRMINGHAM, AL 35211

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 Derzis's NPI number?

The NPI number for John Derzis is 1366138729. It was assigned to this individual provider in the NPPES registry on April 17, 2023.

Where is John Derzis located?

John Derzis practices at 817 Princeton Ave SW Ste 210, Birmingham, AL 35211. The listed phone number is (205) 592-1406.

What is John Derzis's specialty?

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

Is John Derzis enrolled in Medicare?

Yes. John Derzis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Derzis was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.