Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John E Lammers, MD

Individual provider Internal Medicine Physician · NPI 1639128937

John E Lammers, MD practises Internal Medicine in Mobile, Alabama. Graduated from University of South Alabama College of Medicine in 1982, 44 years ago. Practices with USA Health Physician Billing Services LLC, a 340-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alabama and Indiana.

Years since qualifying
44
Trained at
University of South Alabama College of Medicine
Licensed in
AL, IN
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2900 Spring Hill Ave
Mobile, AL 36607-1822
Phone: (251) 287-8420
Fax: (251) 287-8477
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2451 University Hospital Dr, Mobile, AL 36617-3661 — (251) 470-5890

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 11874 (AL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 11874 (AL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01041213A (IN)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence 11874 (AL)

Record details

NPI number1639128937
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 6, 2006
Last updated in NPPESDecember 23, 2021
Certification dateDecember 23, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolUNIVERSITY OF SOUTH ALABAMA COLLEGE OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Usa Health Physician Billing Services Llc — 340 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients65
Services billed 128 a service is one billed item, such as a visit, a test or a procedure
Average patient age62

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at USA Health Physician Billing Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 340 clinicians in the practice; 12 are shown here.

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