Dr. Andrew J. Simpson, MD

  • Decatur, GA
  • Gastroenterologist
NPI1417134008PAC ID3375719818
Medicare services, 2024
397
Medicare patients, 2024
234
Part D claims, 2024
1,282
MIPS score, 2024
74
Hospital affiliations
5
Practice address
2701 N Decatur Road, Decatur, GA 30033
Practice phone
Call (404) 501-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Emory Decatur Hospital

Hospital · Decatur, Georgia

See all 9 affiliations

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Dr. Andrew J. Simpson is a gastroenterologist in Decatur, Georgia

Dr. Simpson practices at Emory Decatur Hospital in Decatur, Georgia, part of Emory University.

Dr. Simpson's NPI, 1417134008, was assigned on January 25, 2008. Dr. Simpson holds Georgia license 061859.

NPI and contact details
Medicare PAC ID
3375719818
NPI enumeration date
January 25, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(404) 501-1000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
47
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Andrew J. Simpson practices at Emory Decatur Hospital in Decatur, Georgia

Dr. Simpson's primary practice is Emory Decatur Hospital, at 2701 N Decatur Road, Decatur, GA 30033 in De Kalb County. The practice phone is (404) 501-1000.

Source: Dmand AI Affiliation Data

Dr. Andrew J. Simpson is affiliated with 6 sites of care and 3 medical groups

Dr. Simpson's primary practice is Emory Decatur Hospital in Decatur, Georgia, part of Emory University. Dr. Simpson is also affiliated with Emory University Hospital. The medical group on file is Atlanta Gastroenterology Associates. Dmand AI also links Dr. Simpson to 3 more hospitals, 2 medical groups and 1 ambulatory surgery center, each named with a free account.

See all 9 affiliations for Dr. Simpson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Andrew J. Simpson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Emory Decatur HospitalAvailable with a free account
+5 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Andrew J. Simpson is one of 503 gastroenterologists in Georgia

Gastroenterology is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Simpson is licensed in Georgia.

Specialties and state licenses

  • Gastroenterology, GeorgiaPrimaryLicense 061859 · taxonomy 207RG0100X

Gastroenterologists near Dr. Simpson

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Andrew J. Simpson billed Medicare for 397 services in 2024

CMS data shows 397 Medicare services from Dr. Simpson across 9 procedure codes in 2024, for 234 Medicare patients. Medicare paid $40,415 for them.

Medicare services, 2024397
Medicare patients234
Paid by Medicare$40,415
Procedure codes9

Dr. Simpson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2932024: 25314%
Surgery
2023: 1532024: 11227%
Other services
2023: 262024: 3223%

Where Dr. Simpson's Medicare services took place, 2024

  • In an office25364%
  • In a facility14436%

Dr. Simpson compared with the Georgia median for gastroenterologists, 2024

  • Dr. Simpson
  • Georgia median
Medicare services
397vs 49420% below
Medicare patients
234vs 29721% below
Part D claims
1,059vs 5032.1 times

Medians across 499 gastroenterologists in Georgia with Dmand AI profiles that report each measure.

Dr. Simpson's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Simpson

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Andrew J. Simpson treated 234 Medicare patients in 2024, average age 73

CMS counts 234 Medicare patients who saw Dr. Simpson in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Simpson's median patient age at 61, with 58% women.

Medicare patients, 2024234
Average age73
Average risk score1.49
Also on Medicaid14%

Dr. Simpson's Medicare patients by age, 2024

Dr. Simpson's Medicare patients by sex, 2024

  • Women13558%
  • Men9942%

Chronic conditions among Dr. Simpson's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis54%
  4. Diabetes32%
  5. Mood disorders26%
  6. Anxiety25%
  7. Depression23%
  8. Chronic kidney disease21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Simpson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Andrew J. Simpson wrote 1,282 Medicare Part D claims in 2024

In 2024, Dr. Simpson wrote 1,282 Medicare Part D claims for 348 patients. 83% of them were for generic drugs. CMS names the drug for 1,059 of them, across 28 drugs with 11 or more claims each, at $251,796 in total drug cost. In 2023, CMS named 988 claims across 25 drugs.

Part D claims, 20241,282
Drugs named by CMS28
Total drug cost$251,796
Part D patients348

Dr. Simpson's Part D claims by kind of drug, 2024

  • Generic1,070 claims83%
  • Brand-name and other212 claims17%

Dr. Simpson's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Simpson's Part D claims, 2024

  • Antibiotics5%60 of 1,282 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 9882024: 1,0597%

Drugs named by CMS: 28 in 2024, 25 in 2023.

See all prescribing by Dr. Simpson

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Andrew J. Simpson scored 74 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 74 out of 100 for Dr. Simpson for performance year 2024, reported as part of a group. Dr. Simpson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Simpson as offering telehealth. CMS counts 80 procedures of colonoscopy by Dr. Simpson, more than 74% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Simpson's MIPS scores, performance year 2024

  • 74of 100Final score
  • 44.9of 100Quality
  • 98of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Simpson ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
72nd percentile81 procedures
Colonoscopy
74th percentile80 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Andrew J. Simpson received $13,752 in industry payments from 2016 to 2025

CMS Open Payments shows 751 general payments to Dr. Simpson from 56 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $2,600.

General payments to Dr. Simpson by program year, 2016 to 2025

General payments to Dr. Simpson by kind, 2016 to 2025

$13.8Kin total
  • Food and beverage$13,66699%
  • Education$811%
  • Gifts$60%

Companies that paid Dr. Simpson the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Simpson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Andrew J. Simpson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Andrew J. Simpson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Andrew J. Simpson's NPI number?

Dr. Andrew J. Simpson's NPI number is 1417134008. It was assigned on January 25, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Andrew J. Simpson?

Dr. Andrew J. Simpson is a gastroenterologist in Decatur, Georgia. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Andrew J. Simpson practice?

Dr. Simpson practices at 2701 N Decatur Road, Decatur, GA 30033. Dr. Simpson's primary practice is Emory Decatur Hospital in Decatur, Georgia, part of Emory University. Dmand AI also links Dr. Simpson to 3 hospitals, 2 medical groups and 1 ambulatory surgery center.

What is Dr. Andrew J. Simpson's office phone number?

The practice phone on file for Dr. Simpson is (404) 501-1000.

What is Dr. Andrew J. Simpson's medical license number?

Dr. Simpson holds Georgia license 061859.

Which hospitals is Dr. Andrew J. Simpson affiliated with?

Dr. Simpson practices at Emory Decatur Hospital in Decatur, Georgia. Dr. Simpson is also affiliated with Emory University Hospital. Dmand AI links Dr. Simpson to 3 more hospitals.

What medical group is Dr. Andrew J. Simpson part of?

Dr. Simpson is linked to Atlanta Gastroenterology Associates. Dmand AI links Dr. Simpson to 2 more medical groups.

Does Dr. Andrew J. Simpson accept Medicare?

Yes. CMS data shows Dr. Simpson billed Medicare for 397 services in 2024, and Dr. Simpson accepts Medicare assignment.

Does Dr. Andrew J. Simpson offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Simpson as offering telehealth services.

What is Dr. Andrew J. Simpson's MIPS score?

Dr. Simpson's MIPS final score for performance year 2024 is 74 out of 100, reported as part of a group.

Show 5 more questionsShow fewer questions

How many Medicare patients does Dr. Andrew J. Simpson see?

CMS counts 234 Medicare patients who saw Dr. Simpson in 2024, with an average age of 73.

What services does Dr. Andrew J. Simpson bill to Medicare?

In 2024, Dr. Simpson's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (43239) and office visit, established patient (99213).

What drugs does Dr. Andrew J. Simpson prescribe most?

In 2024 Medicare Part D data, Dr. Simpson's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Dicyclomine HCl.

Has Dr. Andrew J. Simpson received payments from drug or device companies?

CMS Open Payments shows $13,752 in general payments to Dr. Simpson from 56 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Andrew J. Simpson been practicing?

Dr. Simpson graduated from medical school in 2005, 21 years ago.

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