Dr. Aaron Mack Delman, MD

  • Saint Louis, MO
  • General surgeon
NPI1376048439PAC ID0446507503
Part D claims, 2024
99
Hospital affiliations
1
Industry payments
$426
Medical group
1
State license
1
Practice address
One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
Practice phone
Call (314) 747-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Barnes-Jewish Hospital

Hospital · Saint Louis, Missouri

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Dr. Aaron Mack Delman is a general surgeon in Saint Louis, Missouri

Dr. Delman practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.

Dr. Delman's NPI, 1376048439, was assigned on March 29, 2018. Dr. Delman graduated from Wayne State University School of Medicine in 2018. Dr. Delman holds Missouri license 2024049032.

NPI and contact details
Medicare PAC ID
0446507503
NPI enumeration date
March 29, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(314) 747-3000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

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

Dr. Aaron Mack Delman practices at 2 locations in Saint Louis, Missouri

Dr. Delman's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Delman also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.

  • Barnes-Jewish HospitalPrimary
    One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
  • Barnes-Jewish Hospital
    1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data

Dr. Aaron Mack Delman is affiliated with 1 site of care and 1 medical group

Dr. Delman's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry.

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

Dmand AI tracks the EHR system at Dr. Aaron Mack Delman's practice

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

EHR by site
SiteEHR vendor and product
Barnes-Jewish HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Aaron Mack Delman is one of 593 general surgeons in Missouri

Surgery is Dr. Delman's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Delman is licensed in Missouri.

Specialties and state licenses

  • Surgery, MissouriPrimaryLicense 2024049032 · taxonomy 208600000X

General surgeons near Dr. Delman

Counts of general surgeons 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. Aaron Mack Delman's patients have a median age of 60

Across all payers, Dmand AI patient panel data puts Dr. Delman's median patient age at 60, with 39% women.

Dr. Delman's patients across all payers

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

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women39%
  • Men61%

Source: Dmand AI Patient Panel Data

Dr. Aaron Mack Delman wrote 99 Medicare Part D claims in 2024

In 2024, Dr. Delman wrote 99 Medicare Part D claims for 43 patients. 97% of them were for generic drugs. CMS names the drug for 68 of them, across 3 drugs with 11 or more claims each, at $446 in total drug cost.

Part D claims, 202499
Drugs named by CMS3
Total drug cost$446
Part D patients43

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

  • Generic96 claims97%
  • Brand-name and other3 claims3%

Dr. Delman'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. Delman's Part D claims, 2024

  • Opioids38%38 of 99 claims

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

See all prescribing by Dr. Delman

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

How Dr. Aaron Mack Delman takes part in Medicare

Dr. Delman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Aaron Mack Delman received $426 in industry payments from 2024 to 2025

CMS Open Payments shows 4 general payments to Dr. Delman from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Dilon Technologies, Inc. paid the most, $141.

General payments to Dr. Delman by program year, 2024 to 2025

Companies that paid Dr. Delman the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Delman

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

Dr. Aaron Mack Delman graduated from Wayne State University School of Medicine

Dr. Delman graduated from Wayne State University School of Medicine in 2018.

  1. Medical schoolWayne State University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Aaron Mack Delman'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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. Aaron Mack Delman

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. Aaron Mack Delman's NPI number?

Dr. Aaron Mack Delman's NPI number is 1376048439. It was assigned on March 29, 2018, and it is active in the NPI Registry.

What kind of doctor is Dr. Aaron Mack Delman?

Dr. Aaron Mack Delman is a general surgeon in Saint Louis, Missouri. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Aaron Mack Delman practice?

Dr. Delman practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Delman also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Delman's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.

What is Dr. Aaron Mack Delman's office phone number?

The practice phone on file for Dr. Delman is (314) 747-3000.

What is Dr. Aaron Mack Delman's medical license number?

Dr. Delman holds Missouri license 2024049032.

Which hospitals is Dr. Aaron Mack Delman affiliated with?

Dr. Delman practices at Barnes-Jewish Hospital in Saint Louis, Missouri.

What medical group is Dr. Aaron Mack Delman part of?

Dr. Delman is linked to WashU Medicine Psychiatry.

Does Dr. Aaron Mack Delman accept Medicare?

Yes. CMS lists Dr. Delman as accepting Medicare assignment.

Where did Dr. Aaron Mack Delman go to medical school?

Dr. Delman graduated from Wayne State University School of Medicine in 2018.

What drugs does Dr. Aaron Mack Delman prescribe most?

In 2024 Medicare Part D data, Dr. Delman's most prescribed drugs by claims were Oxycodone HCl, Ondansetron ODT and Ibuprofen.

Has Dr. Aaron Mack Delman received payments from drug or device companies?

CMS Open Payments shows $426 in general payments to Dr. Delman from 4 companies from 2024 to 2025. The largest total came from Dilon Technologies, Inc.

How long has Dr. Aaron Mack Delman been practicing?

Dr. Delman graduated from medical school in 2018, 8 years ago.

Selling to surgery practices?

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