DR. RYAN NAGUMO GRADDY (M.D.) – Internal Medicine Physician, NPI 1164788675

DR. RYAN NAGUMO GRADDY (M.D.) is a healthcare provider. based in Atlanta, Georgia. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 82590 (GA). The NPI Number for DR. RYAN NAGUMO GRADDY (M.D.) is 1164788675

Main info

Male
14 Years Of Experience
Accepts Medicare Assignment
Name
DR. RYAN NAGUMO GRADDY (M.D.)
NPI
1164788675
Phone
(404) 231-4431
Address
2140 PEACHTREE RD NW STE 232
Enumeration Date
9 April 2012
Last Update Date
19 May 2020

Doctor Profile

Medical School Name
WARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Secondary Phone
4042314431113
Graduation Year
2012 (14 years ago)
PAC ID
4789833534
Group Practice PAC ID
3375560394
Professional Enrollment ID
I20190718001906
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience61
Completeness75
Years active:14State licenses:2Digital endpointsOther names

Provider Addresses for DR. RYAN NAGUMO GRADDY (M.D.)

  • 2140 PEACHTREE RD NW STE 232

    ATLANTA, GA 303091316

    Phone: (404) 231-4431

    Fax: (404) 231-5677

    Mailing address matches the actual address.

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: 2024-05-09

PECOS data refreshed: 2026-05-27

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 30309)

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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: 3375560394View full group profile
NameSpecialtyState
MS. CORRINE JONES-WILLIAMS (LCSW)
-GA
DR. DAVID ALAN STAHURA (DO)
-GA
DR. DENNIS M. MELTON (M.D.)
-GA

Reviews

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Frequently asked questions

Is DR. RYAN NAGUMO GRADDY (M.D.) listed with a National Provider Identifier?
Yes — DR. RYAN NAGUMO GRADDY (M.D.) has NPI 1164788675 on file in the registry.
Would DR. RYAN NAGUMO GRADDY (M.D.) appear as active to a payer?
You can treat DR. RYAN NAGUMO GRADDY (M.D.) as active for directory purposes; confirm clinical privileges separately.
What expertise is attributed to DR. RYAN NAGUMO GRADDY (M.D.)?
DR. RYAN NAGUMO GRADDY (M.D.)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Is DR. RYAN NAGUMO GRADDY (M.D.) associated with Atlanta?
Public fields place DR. RYAN NAGUMO GRADDY (M.D.) around Atlanta, Georgia. Always confirm the exact site before visiting.
What does 2 location(s) imply?
2 practice locations appear in the available data.