John James McGlynn III, MD

Primary specialty

Undersea and Hyperbaric Medicine (Emergency Medicine) PhysicianTaxonomy code 207PE0005X

License

104828 Issued in GA

Practice address

61 Whitcher St NE Ste 2150
Marietta, GA 30060-1180

Phone

(770) 422-4268

Fax

(770) 422-2950

NPI assigned

Mar 31, 2019

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MI, GA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Undersea and Hyperbaric Medicine

Education

State University of Ny Upstate Medical University, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Hyperbaric Physicians of Georgia, Inc.Group PAC ID 1052300076, 8 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Wellstar Kennestone Regional Medical Center Hospital, Marietta, GA, CCN 110035

Merit-based Incentive Payment System (MIPS)

Final score

90.39 of 100Reported as group

Quality

85.52

Promoting interoperability

100

Improvement activities

40

Cost

57.34

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Hyperbaric Physicians of Georgia Inc

  • Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
  • Kennesaw, GA
  • NPI 1346300555
  Medicare reassignment Care Compare group NPD
• Spectrum Health Hospitals

  • Hospitalist Physician
  • Grand Rapids, MI
  • NPI 1558407189
  Medicare reassignment NPD
• Cobb Hyperbaric Medicine, Inc

  • Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
  • Marietta, GA
  • NPI 1043376452
  NPD
• Spectrum Health Hospitals

  • General Acute Care Hospital
  • Grand Rapids, MI
  • NPI 1922090554
  NPD
• Hyperbaric Medicine of North Atlanta LLC

  • Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
  • Sandy Springs, GA
  • NPI 1578703773
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Kennestone Hospital, Inc.

  • General Acute Care Hospital
  • Marietta, GA
  • NPI 1649248626
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1553990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1508327529",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 CHASTAIN RD NW STE 210",
            "city": "KENNESAW",
            "state": "GA",
            "postal_code": "301443214",
            "telephone_number": "770-422-0517",
            "fax_number": "678-638-7015"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "61 WHITCHER ST NE STE 2150",
            "city": "MARIETTA",
            "state": "GA",
            "postal_code": "300601180",
            "telephone_number": "770-422-4268",
            "fax_number": "770-422-2950"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "250 Chastain Rd NW Ste 210",
            "address_purpose": "LOCATION",
            "city": "Kennesaw",
            "state": "GA",
            "postal_code": "301443214",
            "country_code": "US",
            "telephone_number": "770-422-0517 x225",
            "fax_number": "678-638-7015",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "275 Michigan St NE",
            "address_purpose": "LOCATION",
            "city": "Grand Rapids",
            "state": "MI",
            "postal_code": "495032531",
            "country_code": "US",
            "telephone_number": "616-391-5272",
            "fax_number": "616-391-9010",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCGLYNN",
        "first_name": "JOHN",
        "middle_name": "JAMES",
        "name_suffix": "III",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-31",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207PE0005X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Undersea and Hyperbaric Medicine",
            "state": "GA",
            "license": "104828",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elizabeth McGee, MD
• Miriam A McGee, LPC, CPCS
• Sarah McGeough
• Barton L McGhee Jr., D.D.S.
• Angela McGill, RBT
• Monica Trechele McGowan, NP
• Brittany McGrady, LMSW
• Garrick James McGrath, D.M.D.
• Maya McGraw, PHARMD
• Caitlin McGuire, DNP

• Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in Marietta, GA
• Providers in Marietta, GA by specialty
• Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.