Dr. Alexandra J. Baumann, DO

  • Chicago, IL
  • Gastroenterologist
NPI1124380332PAC ID5991019390
Medicare services, 2024
399
Medicare patients, 2024
244
Part D claims, 2024
575
Publications
19
MIPS score, 2024
95
Practice address
251 E Huron St, Chicago, IL 60611
Practice phone
Call (312) 926-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Northwestern Memorial Hospital

Hospital · Chicago, Illinois

See all 4 affiliations

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Dr. Alexandra J. Baumann is a gastroenterologist in Chicago, Illinois

Dr. Baumann practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.

Dr. Baumann's NPI, 1124380332, was assigned on June 13, 2012. Dr. Baumann graduated from Midwestern University, Chicago College of Osteopathic Med in 2012. Dr. Baumann holds Illinois license 036149216.

NPI and contact details
Medicare PAC ID
5991019390
NPI enumeration date
June 13, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(312) 926-2000
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

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

Dr. Alexandra J. Baumann practices at Northwestern Memorial Hospital in Chicago, Illinois

Dr. Baumann's primary practice is Northwestern Memorial Hospital, at 251 E Huron St, Chicago, IL 60611 in Cook County. The practice phone is (312) 926-2000.

Source: Dmand AI Affiliation Data

Dr. Alexandra J. Baumann is affiliated with 3 sites of care and 1 medical group

Dr. Baumann's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dr. Baumann is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Baumann to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Baumann

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

Dmand AI tracks the EHR system at Dr. Alexandra J. Baumann's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baumann practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Northwestern Memorial HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Alexandra J. Baumann is one of 771 gastroenterologists in Illinois

Gastroenterology is Dr. Baumann's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Baumann is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Baumann's licenses on file in 3 states: Illinois, Florida and Pennsylvania.

Specialties and state licenses

  • Gastroenterology, IllinoisPrimaryLicense 036149216 · taxonomy 207RG0100X
  • Florida licenseLicense UO5052
  • Internal medicine, PennsylvaniaLicense OT014796 · taxonomy 207R00000X

Gastroenterologists near Dr. Baumann

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. Alexandra J. Baumann billed Medicare for 399 services in 2024

CMS data shows 399 Medicare services from Dr. Baumann across 11 procedure codes in 2024, for 244 Medicare patients. Medicare paid $41,508 for them.

Medicare services, 2024399
Medicare patients244
Paid by Medicare$41,508
Procedure codes11

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

  • 2023
  • 2024
Office and hospital visits
2023: 1532024: 20937%
Surgery
2023: 1112024: 15237%
Other services
2023: 02024: 38

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

  • In an office7519%
  • In a facility32481%

Dr. Baumann compared with the Illinois median for gastroenterologists, 2024

  • Dr. Baumann
  • Illinois median
Medicare services
399vs 49820% below
Medicare patients
244vs 30721% below
Part D claims
530vs 37043% above

Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.

Dr. Baumann'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. Baumann

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

Dr. Alexandra J. Baumann treated 244 Medicare patients in 2024, average age 73

CMS counts 244 Medicare patients who saw Dr. Baumann in 2024. The largest group is 65 to 74, with 115 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Baumann's median patient age at 70, with 64% women.

Medicare patients, 2024244
Average age73
Average risk score1.47
Also on Medicaid16%

Dr. Baumann's Medicare patients by age, 2024

Dr. Baumann's Medicare patients by sex, 2024

  • Women16467%
  • Men8033%

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

  1. High cholesterol75%
  2. High blood pressure69%
  3. Arthritis50%
  4. Ischemic heart disease34%
  5. Diabetes32%
  6. Anxiety31%
  7. Mood disorders31%
  8. Chronic kidney disease28%

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

Dr. Baumann's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women64%
  • Men36%

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

Dr. Alexandra J. Baumann wrote 575 Medicare Part D claims in 2024

In 2024, Dr. Baumann wrote 575 Medicare Part D claims for 213 patients. 89% of them were for generic drugs. CMS names the drug for 530 of them, across 7 drugs with 11 or more claims each, at $13,093 in total drug cost. In 2023, CMS named 476 claims across 7 drugs.

Part D claims, 2024575
Drugs named by CMS7
Total drug cost$13,093
Part D patients213

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

  • Generic514 claims89%
  • Brand-name61 claims11%

Dr. Baumann'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 4762024: 53011%

Drugs named by CMS: 7 in 2024, 7 in 2023.

See all prescribing by Dr. Baumann

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. Alexandra J. Baumann scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Baumann for performance year 2024, reported through an alternative payment model (APM). Dr. Baumann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Baumann as offering telehealth. CMS counts 109 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Baumann, more than 78% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Baumann's MIPS scores, performance year 2024

  • 95of 100Final score
  • 83of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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

Where Dr. Baumann ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
78th percentile109 procedures
Colonoscopy
45th percentile16 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. Alexandra J. Baumann has 19 publications on record

Dmand AI links 19 papers to Dr. Baumann, published from 2013 to 2024. 2020 was the busiest year, with 5. The most frequent topics are Manometry, Esophageal Motility Disorders and Esophagogastric Junction. Dr. Baumann has published most often in Clin Gastroenterol Hepatol. Dr. Baumann's most frequent co-authors are Dustin A. Carlson, MD, John E. Pandolfino, MD and Erica Nicole Donnan, MD.

Papers19
Years published2013 to 2024

Dr. Baumann's papers by year, 2013 to 2024

Topics Dr. Baumann writes about most

  • Manometry
  • Esophageal Motility Disorders
  • Esophagogastric Junction
  • Esophageal Achalasia
  • Peristalsis
  • Endoscopy, Gastrointestinal
  • Esophagus
  • Deglutition

Dr. Baumann's most frequent co-authors

Recent publications by Dr. Baumann

See all 19 publications and co-authors

See who Dr. Baumann researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Baumann works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Alexandra J. Baumann received $339 in industry payments from 2016 to 2024

CMS Open Payments shows 5 general payments to Dr. Baumann from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $111.

General payments to Dr. Baumann by program year, 2016 to 2024

Companies that paid Dr. Baumann the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Baumann

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

Dr. Alexandra J. Baumann graduated from Midwestern University, Chicago College of Osteopathic Med

Dr. Baumann graduated from Midwestern University, Chicago College of Osteopathic Med in 2012.

  1. Medical schoolMidwestern University, Chicago College of Osteopathic Med
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Alexandra J. Baumann'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Alexandra J. Baumann

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. Alexandra J. Baumann's NPI number?

Dr. Alexandra J. Baumann's NPI number is 1124380332. It was assigned on June 13, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Alexandra J. Baumann?

Dr. Alexandra J. Baumann is a gastroenterologist in Chicago, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Alexandra J. Baumann practice?

Dr. Baumann practices at 251 E Huron St, Chicago, IL 60611. Dr. Baumann's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Baumann to 1 group practice or clinic.

What is Dr. Alexandra J. Baumann's office phone number?

The practice phone on file for Dr. Baumann is (312) 926-2000.

What is Dr. Alexandra J. Baumann's medical license number?

Dr. Baumann holds Illinois license 036149216, one of the licenses on file in 3 states.

Which states has Dr. Alexandra J. Baumann been licensed in?

Dmand AI has state licenses on file for Dr. Baumann in Illinois, Florida and Pennsylvania.

Which hospitals is Dr. Alexandra J. Baumann affiliated with?

Dr. Baumann practices at Northwestern Memorial Hospital in Chicago, Illinois. Dr. Baumann is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital.

What medical group is Dr. Alexandra J. Baumann part of?

Dr. Baumann is linked to Northwestern Medical Faculty Foundation.

Does Dr. Alexandra J. Baumann accept Medicare?

Yes. CMS data shows Dr. Baumann billed Medicare for 399 services in 2024, and Dr. Baumann accepts Medicare assignment.

Does Dr. Alexandra J. Baumann offer telehealth?

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

Show 10 more questionsShow fewer questions

What is Dr. Alexandra J. Baumann's MIPS score?

Dr. Baumann's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Alexandra J. Baumann see?

CMS counts 244 Medicare patients who saw Dr. Baumann in 2024, with an average age of 73.

Is Dr. Alexandra J. Baumann board certified?

Yes. Dr. Baumann is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Alexandra J. Baumann bill to Medicare?

In 2024, Dr. Baumann's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and surgery: digestive system (43239).

Where did Dr. Alexandra J. Baumann go to medical school?

Dr. Baumann graduated from Midwestern University, Chicago College of Osteopathic Med in 2012.

What drugs does Dr. Alexandra J. Baumann prescribe most?

In 2024 Medicare Part D data, Dr. Baumann's most prescribed drugs by claims were Omeprazole, Rabeprazole Sodium and Peg 3350-Electrolyte.

Has Dr. Alexandra J. Baumann received payments from drug or device companies?

CMS Open Payments shows $339 in general payments to Dr. Baumann from 5 companies from 2016 to 2024. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Alexandra J. Baumann been practicing?

Dr. Baumann graduated from medical school in 2012, 14 years ago.

Does Dr. Alexandra J. Baumann do research?

Dmand AI links 19 publications to Dr. Baumann, published from 2013 to 2024.

Who does Dr. Alexandra J. Baumann publish with?

Dr. Baumann's most frequent co-authors are Dustin A. Carlson, MD (13 shared papers), John E. Pandolfino, MD (13 shared papers) and Erica Nicole Donnan, MD (12 shared papers).

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