DR. DANIEL F. CALLAHAN M.D.
NPI 1598761223
Internal Medicine - Pulmonary Disease in Alpharetta, GA

Q: What is Daniel Callahan's NPI number?

The NPI number for Daniel Callahan is 1598761223. It was assigned to this individual provider in the NPPES registry on June 27, 2005.

Q: Where is Daniel Callahan located?

Daniel Callahan practices at 3400 Old Milton Pkwy # C Ste 425, Alpharetta, GA 30005. The listed phone number is (770) 343-8760.

Q: What is Daniel Callahan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: Is Daniel Callahan enrolled in Medicare?

Yes. Daniel Callahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Q: What insurance does Daniel Callahan accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Daniel Callahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Q: Is Daniel Callahan affiliated with any hospitals?

According to CMS data, Daniel Callahan is affiliated with Northside Hospital Forsyth, Northside Hospital Cherokee and Northside Hospital.

Q: When was this NPI record last updated?

The NPPES record for Daniel Callahan was last updated on April 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 27, 2005PECOS EnrolledAccepts Medicare Assignment

65.41/100

CMS Quality Rating

3400 OLD MILTON PKWY # C, STE 425, ALPHARETTA, GA 30005(770) 343-8760(770) 664-2101 Get Directions Write a Review

NPPES record last updated: April 26, 2021. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Apr 26, 2021, Jan 11, 2017, Nov 21, 2016 (3 updates tracked since 2016).

On this page

About Dr. Daniel F. Callahan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DANIEL F. CALLAHAN M.D. (NPI 1598761223) is an individual pulmonary disease provider in Alpharetta, Georgia, licensed in Georgia (033044) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Northside Hospital Forsyth, and is a graduate of Medical College Of Georgia School Of Medicine (1985).

NPPES Registry Identity

NPI1598761223

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. DANIEL F. CALLAHANCredential: M.D.

Location Address3400 OLD MILTON PKWY # C, STE 425Alpharetta, GA 30005-3707

Mailing Address3400 Old Milton Pkwy # C, Ste 425Alpharetta, GA 30005-3707 · (770) 343-8760 · Fax (770) 664-2101

Phone(770) 343-8760

Fax(770) 664-2101

Sole ProprietorNo

Medical School CMSMedical College Of Georgia School Of MedicineGraduated 1985

Enumeration DateJune 27, 2005

Last NPPES UpdateApril 26, 20213 updates tracked since enumeration

NPPES CertifiedApril 26, 2021

✔ NPI 1598761223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in GA · 033044

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License 033044 (GA)

3400 OLD MILTON PKWY # C, Alpharetta, GA 30005

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Other Identifiers 1

Medicaid00449391CGA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Daniel F. Callahan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517875610

PECOS Enrollment IDI20090921000330

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

392 services315 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

146 services113 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

120 services120 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

96 services53 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

62 services45 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

60 services60 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

39 services36 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

39 services39 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

37 services37 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

35 services35 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

26 services26 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

24 services24 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

18 services18 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

17 services16 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

14 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital Forsyth

Acute Care Hospitals · Cumming, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110005

Location1200 Northside Forsyth DriveCumming, GA 30041 · Forsyth County

Birthing friendly

Northside Hospital Cherokee

Acute Care Hospitals · Canton, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number110008

Location450 Northside Cherokee BoulevardCanton, GA 30115 · Cherokee County

Emergency services Birthing friendly

Northside Hospital

Acute Care Hospitals · Atlanta, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110161

Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30005 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.64 typical visit price

range $56.84 – $172.43

Typical copayment $32.66 (range $14.21 – $43.10)

Most-billed visit code 99204

Established Patient

$100.20 typical visit price

range $18.22 – $140.40

Typical copayment $25.05 (range $4.55 – $35.10)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

65.41/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

64.46

Improvement Activities

Cost

49.84

Reported Quality Measures

Advance Care Plan

96%1,200 patients4/55-star benchmark: 100%

Breast Cancer Screening

63%491 patients3/55-star benchmark: 100%

Controlling High Blood Pressure

60%950 patients3/55-star benchmark: 98%

Coronary Artery Disease (CAD): Angiotensin-Converting Enzyme (ACE) Inhibitor or Angiotensin Receptor Blocker (ARB) Therapy - Diabetes or Left Ventricular Systolic Dysfunction (LVEF <= 40%)

85%33 patients4/55-star benchmark: 100%

Screening for Osteoporosis for Women Aged 65-85 Years of Age

50%404 patients3/55-star benchmark: 98%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 34

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

40 suppliers966 claims966 services$33.07 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

6 suppliers46 claims92 services$1.26 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, non-disposable A7005

DME-Other DME · category DE000N

6 suppliers16 claims16 services$10.24 avg. paid by Medicare

Aerosol mask, used with dme nebulizer A7015

DME-Other DME · category DE000N

5 suppliers15 claims16 services$1.06 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

30 suppliers482 claims482 services$71.78 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

30 suppliers454 claims1,292 services$27.27 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

37 suppliers459 claims2,649 services$15.45 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

18 suppliers258 claims1,482 services$12.63 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

40 suppliers786 claims786 services$48.69 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

48 suppliers694 claims694 services$15.04 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

14 suppliers58 claims58 services$9.07 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

24 suppliers204 claims204 services$9.45 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

52 suppliers1,056 claims6,143 services$1.71 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

19 suppliers63 claims63 services$5.17 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

39 suppliers521 claims521 services$11.32 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

12 suppliers116 claims117 services$14.66 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

5 suppliers112 claims112 services$915.45 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

10 suppliers309 claims309 services$71.23 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0471

DME-Other DME · category DE001N

5 suppliers38 claims38 services$173.19 avg. paid by Medicare

High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each E0483

DME-Other DME · category DE000N

3 suppliers35 claims35 services$829.64 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

17 suppliers91 claims91 services$110.47 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

6 suppliers40 claims40 services$11.45 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

7 suppliers108 claims108 services$3.20 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

21 suppliers718 claims718 services$27.82 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

16 suppliers400 claims400 services$66.53 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

8 suppliers155 claims155 services$30.30 avg. paid by Medicare

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

6 suppliers129 claims7,776 services$4.58 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

10 suppliers73 claims16,126 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

7 suppliers39 claims2,400 services$0.10 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

8 suppliers110 claims6,606 services$0.79 avg. paid by Medicare

Ipratropium bromide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per milligram J7644

DME-Drugs Administered Through DME · category DG006N

8 suppliers33 claims1,353 services$0.16 avg. paid by Medicare

Revefenacin inhalation solution, fda-approved final product, non-compounded, administered through dme, 1 microgram J7677

DME-Drugs Administered Through DME · category DG006N

3 suppliers24 claims126,000 services$0.15 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

3 suppliers36 claims36 services$29.55 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

23 suppliers208 claims208 services$24.81 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LISA KEY OSBORNE MS, CCC-A

Audiologist

3400 OLD MILTON PKWY # C, STE. 365
ALPHARETTA, GA 30005

Fulton County (404) 446-2400

REGAN J KUDLATA RN FNP

Nurse Practitioner (Family)

3400 OLD MILTON PKWY # C, STE 190
ALPHARETTA, GA 30005

Fulton County (404) 832-0300

MEGAN KELLER PA-C

Physician Assistant (Medical)

3400 OLD MILTON PKWY # C, SUITE 270
ALPHARETTA, GA 30005

Fulton County (770) 442-1911

MARK J. YANTA M.D.

Otolaryngology

3400 OLD MILTON PKWY # C, STE 365
ALPHARETTA, GA 30005

Fulton County (404) 446-2400

NSH CANCER INSTITUTE PROFESSIONAL SERVICES A LLC

Durable Medical Equipment & Medical Supplies

3400 OLD MILTON PKWY # C, SUITE 400
ALPHARETTA, GA 30005

Fulton County (770) 740-9664

LAUREN SAMPLE PT

Physical Therapist

3400 OLD MILTON PKWY # C
ALPHARETTA, GA 30005

Fulton County (770) 410-7669

CHARLES D WILLIAMS M.D.

Family Medicine (Adult Medicine)

3400 OLD MILTON PKWY # C, SUITE 270
ALPHARETTA, GA 30005

Fulton County (770) 442-1911

EDUARDO E EGEA M.D.

Internal Medicine (Pulmonary Disease)

3400 OLD MILTON PKWY # C, STE 425
ALPHARETTA, GA 30005

Fulton County (770) 343-8760

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daniel Callahan's NPI number?

The NPI number for Daniel Callahan is 1598761223. It was assigned to this individual provider in the NPPES registry on June 27, 2005.

Where is Daniel Callahan located?

Daniel Callahan practices at 3400 Old Milton Pkwy # C Ste 425, Alpharetta, GA 30005. The listed phone number is (770) 343-8760.

What is Daniel Callahan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Daniel Callahan enrolled in Medicare?

Yes. Daniel Callahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Daniel Callahan accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Daniel Callahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Daniel Callahan affiliated with any hospitals?

According to CMS data, Daniel Callahan is affiliated with Northside Hospital Forsyth, Northside Hospital Cherokee and Northside Hospital.

When was this NPI record last updated?

The NPPES record for Daniel Callahan was last updated on April 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.