Dr John Steven Lammert, MD - Medicare Internal Medicine in Marietta, GA

Dr John Steven Lammert, MD is a medicare enrolled "Internal Medicine" physician in Marietta, Georgia. He went to Medical College Of Georgia School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Perimeter Professional Services, Llc and his current practice location is 191 Cherokee St Ne, Marietta, Georgia. You can reach out to his office (for appointments etc.) via phone at (678) 354-3426.

Dr John Steven Lammert is licensed to practice in Georgia (license number 033619) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1699727909.

Contact Information

Dr John Steven Lammert, MD
191 Cherokee St Ne,
Marietta, GA 30060-1609
(678) 354-3426
(678) 354-3469



Physician's Profile

Full NameDr John Steven Lammert
GenderMale
SpecialityInternal Medicine
Experience35 Years
Location191 Cherokee St Ne, Marietta, Georgia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John Steven Lammert attended and graduated from Medical College Of Georgia School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1699727909
  • Provider Enumeration Date: 05/16/2006
  • Last Update Date: 04/26/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2668499708
  • Enrollment ID: I20051028000259

Medical Identifiers

Medical identifiers for Dr John Steven Lammert such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699727909NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 033619 (Georgia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northside Hospital CherokeeCanton, GAHospital
Northside HospitalAtlanta, GAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Perimeter Professional Services, Llc903233742317

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John Steven Lammert allows following entities to bill medicare on his behalf.
Entity NamePeachtree Immediate Care Fp, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437194156
PECOS PAC ID: 3274559323
Enrollment ID: O20051019000049

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Entity NameWellstar Medical Group, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558664003
PECOS PAC ID: 6709065402
Enrollment ID: O20110127000374

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Entity NamePerimeter Professional Services, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235543620
PECOS PAC ID: 9032337423
Enrollment ID: O20140827000316

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr John Steven Lammert is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John Steven Lammert, MD
191 Cherokee St Ne,
Marietta, GA 30060-1609

Ph: (678) 354-3426
Dr John Steven Lammert, MD
191 Cherokee St Ne,
Marietta, GA 30060-1609

Ph: (678) 354-3426

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Internal Medicine Doctors in Marietta, GA

Anu Kurl, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 400 Tower Rd Ne Ste 160, Marietta, GA 30060
Phone: 770-420-1690    Fax: 770-420-1661
Dr. Sharon M Odell, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 54 Tower Rd Ne, Marietta, GA 30060
Phone: 770-427-4682    Fax: 770-499-8562
Dr. Helga Annalina Bahr, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 580 Atlanta Country Club Drive, Marietta, GA 30068
Phone: 770-988-8554    
Dr. Kaynessa Celena Providence, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 54 Tower Rd Ne, Marietta, GA 30060
Phone: 770-427-4682    Fax: 770-499-8562
Dr. Ryan V Cantwell, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 320 Kennestone Hospital Blvd, Suite 201, Marietta, GA 30060
Phone: 770-427-2457    Fax: 770-427-2706
Dr. Joanne Zhiwen Zhu, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 677 Church St Ne # 111, Marietta, GA 30060
Phone: 770-793-7750    
Asif A Saberi, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 55 Whitcher St Ne, Suite 160, Marietta, GA 30060
Phone: 770-422-1372    Fax: 770-423-9651

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