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

Dr John Steven Lammert, MD is a medicare enrolled "Internal Medicine" physician in Woodstock, Georgia. He went to Medical College Of Georgia School Of Medicine and graduated in 1989 and has 36 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 900 Towne Lake Pkwy Ste 210, Woodstock, Georgia. You can reach out to his office (for appointments etc.) via phone at (770) 592-2300.

Dr John Steven Lammert is licensed to practice in Georgia (license number 33619) 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
	900 Towne Lake Pkwy Ste 210, Woodstock, GA 30189-1603
	(770) 592-2300
	(770) 592-2040

Map and Direction

Physician's Profile

Full Name	Dr John Steven Lammert
Gender	Male
Speciality	Internal Medicine
Experience	36 Years
Location	900 Towne Lake Pkwy Ste 210, Woodstock, Georgia
Accepts Medicare Assignments	Yes. 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: 10/17/2025

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.

Identifier	Type	State	Issuer
1699727909	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	33619 (Georgia)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Northside Hospital Cherokee	Canton, GA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Perimeter Professional Services, Llc	9032337423	18

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 Name	Peachtree Immediate Care Fp, Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1437194156 PECOS PAC ID: 3274559323 Enrollment ID: O20051019000049

Entity Name	Wellstar Medical Group Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1558664003 PECOS PAC ID: 6709065402 Enrollment ID: O20110127000374

Entity Name	Perimeter Professional Services, Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1235543620 PECOS PAC ID: 9032337423 Enrollment ID: O20140827000316

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 Address	Practice Location Address
Dr John Steven Lammert, MD 900 Towne Lake Pkwy Ste 210, Woodstock, GA 30189-1603 Ph: (770) 592-2300	Dr John Steven Lammert, MD 900 Towne Lake Pkwy Ste 210, Woodstock, GA 30189-1603 Ph: (770) 592-2300

Reviews and Comments

Internal Medicine Doctors in Woodstock, GA

Dr. Vanessa C Womack, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 960 Woodstock Pkwy Ste 300, Woodstock, GA 30188 Phone: 770-517-2145 Fax: 770-517-2147
Dr. Cesar Isaac Cruz Aguilar, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 900 Towne Lake Pkwy, Ste 400, Woodstock, GA 30189 Phone: 770-924-5095 Fax: 770-924-7429
Dr. Stanley R Mogelnicki, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 145 N Medical Pkwy, Woodstock, GA 30189 Phone: 770-592-3000 Fax: 770-592-3012
Bram Wieskopf, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1192 Buckhead Xing, Suite E, Woodstock, GA 30189 Phone: 678-494-4450 Fax: 678-494-6265
Fitsum Woldesellassie, Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 900 Towne Lake Pkwy Ste 308, Woodstock, GA 30189 Phone: 414-805-3310
Vineet Gurram Reddy, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 120 Stonebridge Pkwy Ste 320, Woodstock, GA 30189 Phone: 770-422-1372
Dr. Hima Bindu Kadiyala, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 970 Woodstock Pkwy, Suite 100, Woodstock, GA 30188 Phone: 678-388-5750 Fax: 678-388-5785

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