DR. DANIEL F. CALLAHAN (M.D.) – Pulmonary Disease Physician, NPI 1598761223

DR. DANIEL F. CALLAHAN (M.D.) is a healthcare provider. based in Alpharetta, Georgia. specializing in PULMONARY DISEASE. They hold the professional credentials M.D.. They hold a License No. 033044 (GA). The NPI Number for DR. DANIEL F. CALLAHAN (M.D.) is 1598761223

Main info

Male
41 Years Of Experience
Accepts Medicare Assignment
Name
DR. DANIEL F. CALLAHAN (M.D.)
NPI
1598761223
Phone
(770) 343-8760
Address
3400 OLD MILTON PKWY # C
Enumeration Date
27 June 2005
Last Update Date
26 April 2021

Doctor Profile

Medical School Name
MEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Secondary Phone
7703438760
Graduation Year
1985 (41 years ago)
PAC ID
7517875610
Group Practice PAC ID
9638343924
Professional Enrollment ID
I20090921000330
Address ID
GA300054438AL3400XPKWY516
Telehealth
Yes

Contacts

Secure Messaging
daniel.callahan@northsidehospital.cernerdirect.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

503 PULMONARY DISEASE in GA

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Provider Addresses for DR. DANIEL F. CALLAHAN (M.D.)

  • Old Milton Parkway, Country Place, Alpharetta, Fulton, Georgia, 30022, United States

    STE 425

    ALPHARETTA, GA 300053707

    Phone: (770) 343-8760

    Fax: (770) 664-2101

    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)

CMS reports 184 Open Payments records for all available years, with a total value of $4,103.

Total Amount is formed as General ($4,103) + Research ($0) + Ownership ($0) = $4,103.

Last reported payment date: 2024-12-21 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($708).

Total Amount

$4,103

General + Research + Ownership

Payments

184

Total payment records

General Amount

$4,103

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-21

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

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: 2009-09-21

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
I20090921000330IPulmonary DiseaseGATBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes317274$0
99214Established patient office or other outpatient visit, 30-39 minutes161118$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes12155$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes9364$0
99212Established patient office or other outpatient visit, 10-19 minutes9080$0
View full utilization report →

Insurance plans in this area (ZIP 30005)

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Provider's Procedures

DR. DANIEL F. CALLAHAN (M.D.) performs procedures in PULMONARY DISEASE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PULMONARY DISEASEGA90670Pneumococcal vaccine for injection into muscle2020
PULMONARY DISEASEGA95811Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube7267

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: 9638343924View full group profile
NameSpecialtyState
Family PracticeGA
Nurse PractitionerNC
Nurse PractitionerGA
Internal MedicineGA
Internal MedicineGA
Internal Medicine, EndocrinologyGA
-GA
-NV
N E U R O L O G YTX
-GA

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Frequently asked questions

What is the 10-digit NPI for DR. DANIEL F. CALLAHAN (M.D.)?
DR. DANIEL F. CALLAHAN (M.D.) — NPI 1598761223 — is the standard way to identify this listing.
Is DR. DANIEL F. CALLAHAN (M.D.) still practicing?
DR. DANIEL F. CALLAHAN (M.D.) is currently listed as active in the public NPI registry.
What healthcare role does DR. DANIEL F. CALLAHAN (M.D.) hold?
Scheduling teams often label DR. DANIEL F. CALLAHAN (M.D.) under Pulmonary Disease Physician. Clinical services aligned with this taxonomy classification.
What address line appears for DR. DANIEL F. CALLAHAN (M.D.)?
DR. DANIEL F. CALLAHAN (M.D.)'s geographic hint is Alpharetta, Georgia in our summary view.
Why does DR. DANIEL F. CALLAHAN (M.D.) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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