DR. JONATHAN MARSHALL FLACKER (M.D.) – Geriatric Medicine (Internal Medicine) Physician, NPI 1568402162

DR. JONATHAN MARSHALL FLACKER (M.D.) is a healthcare provider. based in Atlanta, Georgia. specializing in INTERNAL MEDICINE, GERIATRIC MEDICINE. They hold the professional credentials M.D.. They hold a License No. 048148 (GA). The NPI Number for DR. JONATHAN MARSHALL FLACKER (M.D.) is 1568402162

Main info

Male
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. JONATHAN MARSHALL FLACKER (M.D.)
NPI
1568402162
Phone
(404) 616-7642
Address
EMMA I DARNELL GERIATRICS CENTER
Enumeration Date
8 June 2006
Last Update Date
29 January 2020

Doctor Profile

Medical School Name
UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Secondary Phone
7706293217
Graduation Year
1990 (36 years ago)
PAC ID
6002900339
Group Practice PAC ID
8426466590
Professional Enrollment ID
I20070918000386
Address ID
GA302602357MO1331XRDXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

5,409 INTERNAL MEDICINE in GA

Provider Addresses for DR. JONATHAN MARSHALL FLACKER (M.D.)

  • EMMA I DARNELL GERIATRICS CENTER

    80 JESSE HILL JR DRIVE

    ATLANTA, GA 30303

    Phone: (404) 616-7642

    Fax: (404) 616-2474

    Type: Mailing

  • Emma I Darnell Geriatrics Center

    80 Jesse Hill Jr Drive

    Atlanta, GA 30303

    Phone: (404) 616-7642

    Fax: (404) 616-2474

    Type: Location

  • 1331, Mount Zion Road, Morrow, Clayton County, Georgia, 30260, United States

    MORROW, GA 302602357

    Phone: (770) 629-3217

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2007-09-18

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070918000386IInternal MedicineGATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 30303)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8426466590View full group profile
NameSpecialtyState
Internal MedicineGA
Internal MedicineNY
Family PracticeGA
Family PracticeGA
Internal MedicineAL
Family PracticeGA
Internal MedicineOH
Internal MedicineGA
Family PracticeTN
Internal MedicineFL

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Frequently asked questions

Is DR. JONATHAN MARSHALL FLACKER (M.D.) listed with a National Provider Identifier?
Yes — DR. JONATHAN MARSHALL FLACKER (M.D.) has NPI 1568402162 on file in the registry.
Is DR. JONATHAN MARSHALL FLACKER (M.D.) still an active registrant?
DR. JONATHAN MARSHALL FLACKER (M.D.) carries an active NPI according to the public dataset.
What kind of doctor is DR. JONATHAN MARSHALL FLACKER (M.D.)?
DR. JONATHAN MARSHALL FLACKER (M.D.) is associated with Geriatric Medicine (Internal Medicine) Physician in the directory — Clinical services aligned with this taxonomy classification.
What locale is associated with DR. JONATHAN MARSHALL FLACKER (M.D.)?
Directory geography for DR. JONATHAN MARSHALL FLACKER (M.D.) centers on Atlanta, Georgia.
Does DR. JONATHAN MARSHALL FLACKER (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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