Ajaypal Singh, MBBS

  • Chicago, IL
  • Gastroenterologist
NPI1568696409PAC ID9436443074
Medicare services, 2024
363
Medicare patients, 2024
216
Part D claims, 2024
135
Publications
28
Hospital affiliations
3
Practice address
1653 West Congress Parkway, Chicago, IL 60612
Practice phone
Call (312) 942-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Rush University Medical Center

Hospital · Chicago, Illinois

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Ajaypal Singh is a gastroenterologist in Chicago, Illinois

Ajaypal Singh practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.

Ajaypal Singh's NPI, 1568696409, was assigned on May 6, 2009. Ajaypal Singh graduated from All India Institute of Medical Sciences in 2006. Ajaypal Singh holds Illinois license 036129894.

NPI and contact details
Medicare PAC ID
9436443074
NPI enumeration date
May 6, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(312) 942-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
45
Medical school graduation
2006

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

Ajaypal Singh practices at Rush University Medical Center in Chicago, Illinois

Ajaypal Singh's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.

Source: Dmand AI Affiliation Data

Ajaypal Singh is affiliated with 4 sites of care and 1 medical group

Ajaypal Singh's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Ajaypal Singh is also affiliated with Rush Oak Park Hospital. The medical group on file is Rush University Internists. Dmand AI also links Ajaypal Singh to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Ajaypal Singh

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

Dmand AI tracks the EHR system at Ajaypal Singh's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ajaypal Singh practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Rush University Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Ajaypal Singh is one of 771 gastroenterologists in Illinois

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

Specialties and state licenses

  • Gastroenterology, IllinoisPrimaryLicense 036129894 · 2012 to 2026 · taxonomy 207RG0100X
  • Alabama licenseSince 2009
  • Ohio license2015 to 2018

Clinical focus

Dmand AI lists colonoscopy, pancreas or bile duct endoscopy (ERCP) and upper GI endoscopy among the conditions Ajaypal Singh treats.

Gastroenterologists near Ajaypal Singh

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

Ajaypal Singh billed Medicare for 363 services in 2024

CMS data shows 363 Medicare services from Ajaypal Singh across 12 procedure codes in 2024, for 216 Medicare patients. Medicare paid $54,963 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024363
Medicare patients216
Paid by Medicare$54,963
Procedure codes12

Ajaypal Singh's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 2882024: 3015%
Imaging
2023: 682024: 629%

Ajaypal Singh compared with the Illinois median for gastroenterologists, 2024

  • Ajaypal Singh
  • Illinois median
Medicare services
363vs 49827% below
Medicare patients
216vs 30730% below
Part D claims
111vs 37070% below

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

Ajaypal Singh'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.

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

Ajaypal Singh treated 216 Medicare patients in 2024, average age 73

CMS counts 216 Medicare patients who saw Ajaypal Singh in 2024. The largest group is 65 to 74, with 97 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.93, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Ajaypal Singh's median patient age at 70, with 47% women.

Medicare patients, 2024216
Average age73
Average risk score1.93
Also on Medicaid23%

Ajaypal Singh's Medicare patients by age, 2024

Ajaypal Singh's Medicare patients by sex, 2024

  • Women10950%
  • Men10750%

Chronic conditions among Ajaypal Singh's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis44%
  4. Diabetes41%
  5. Ischemic heart disease39%
  6. Chronic kidney disease25%
  7. Mood disorders25%
  8. COPD24%

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

Ajaypal Singh'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

  • Women47%
  • Men52%

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

Ajaypal Singh wrote 135 Medicare Part D claims in 2024

In 2024, Ajaypal Singh wrote 135 Medicare Part D claims for 113 patients. 73% of them were for generic drugs. CMS names the drug for 111 of them, across 4 drugs with 11 or more claims each, at $3,075 in total drug cost. In 2023, CMS named 62 claims across 1 drug.

Part D claims, 2024135
Drugs named by CMS4
Total drug cost$3,075
Part D patients113

Ajaypal Singh's Part D claims by kind of drug, 2024

  • Generic98 claims73%
  • Brand-name37 claims27%

Ajaypal Singh'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: 622024: 11179%

Drugs named by CMS: 4 in 2024, 1 in 2023.

See all prescribing by Ajaypal Singh

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

Ajaypal Singh ranks in the 98th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Ajaypal Singh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 414 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Ajaypal Singh, more than 98% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Ajaypal Singh ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
98th percentile414 procedures
Colonoscopy
60th percentile43 procedures

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

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

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Ajaypal Singh has 28 publications on record

Dmand AI links 28 papers to Ajaypal Singh, published from 2014 to 2025. 2014 was the busiest year, with 3. The most frequent topics are Endoscopy, Gastrointestinal, Colonoscopy and Endoscopy. Ajaypal Singh has published most often in Gastrointest Endosc. Ajaypal Singh's most frequent co-authors are Irving Waxman, MD, Christopher Grant Chapman, MD and Neal Ambrish Mehta.

Papers28
Years published2014 to 2025

Ajaypal Singh's papers by year, 2014 to 2025

Topics Ajaypal Singh writes about most

  • Endoscopy, Gastrointestinal
  • Colonoscopy
  • Endoscopy
  • Gastroenterology
  • Artificial Intelligence
  • Colonic Polyps
  • Endoscopic Mucosal Resection
  • Endoscopy, Digestive System

Ajaypal Singh's most frequent co-authors

Recent publications by Ajaypal Singh

See all 28 publications and co-authors

See who Ajaypal Singh researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Ajaypal Singh 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

Ajaypal Singh received $42,654 in industry payments from 2016 to 2025

CMS Open Payments shows 161 general payments to Ajaypal Singh from 19 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 41% of the total. Boston Scientific Corporation paid the most, $20,900.

General payments to Ajaypal Singh by program year, 2016 to 2025

General payments to Ajaypal Singh by kind, 2016 to 2025

$42.7Kin total
  • Speaker and faculty fees$17,42541%
  • Consulting fees$9,20022%
  • Food and beverage$6,73116%
  • Travel and lodging$5,02812%
  • Education$4,27010%

Companies that paid Ajaypal Singh the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Ajaypal Singh

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

Ajaypal Singh graduated from All India Institute of Medical Sciences

Ajaypal Singh graduated from All India Institute of Medical Sciences in 2006.

  1. Medical schoolAll India Institute of Medical Sciences
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Ajaypal Singh accepts plans from 17 insurance carriers

Ajaypal Singh is in network with 17 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Ajaypal Singh accepts, by number of carriers

  1. PPO12
  2. HMO9
  3. Medicare9
  4. POS6
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Ajaypal Singh'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)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
Insurance carriers and plan typesDmand AI Insurance Network 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 Ajaypal Singh

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

What is Ajaypal Singh's NPI number?

Ajaypal Singh's NPI number is 1568696409. It was assigned on May 6, 2009, and it is active in the NPI Registry.

What does Ajaypal Singh specialize in?

Ajaypal Singh is a gastroenterologist in Chicago, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Ajaypal Singh practice?

Ajaypal Singh practices at 1653 West Congress Parkway, Chicago, IL 60612. Ajaypal Singh's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dmand AI also links Ajaypal Singh to 1 hospital and 1 group practice or clinic.

What is Ajaypal Singh's office phone number?

The practice phone on file for Ajaypal Singh is (312) 942-5000.

What is Ajaypal Singh's medical license number?

Ajaypal Singh holds Illinois license 036129894, one of the licenses on file in 3 states.

Which states has Ajaypal Singh been licensed in?

Dmand AI has state licenses on file for Ajaypal Singh in Illinois (2012 to 2026), Alabama (since 2009) and Ohio (2015 to 2018).

Which hospitals is Ajaypal Singh affiliated with?

Ajaypal Singh practices at Rush University Medical Center in Chicago, Illinois. Ajaypal Singh is also affiliated with Rush Oak Park Hospital. Dmand AI links Ajaypal Singh to 1 more hospital.

What medical group is Ajaypal Singh part of?

Ajaypal Singh is linked to Rush University Internists.

Does Ajaypal Singh accept Medicare?

Yes. CMS data shows Ajaypal Singh billed Medicare for 363 services in 2024, and Ajaypal Singh accepts Medicare assignment.

How many Medicare patients does Ajaypal Singh see?

CMS counts 216 Medicare patients who saw Ajaypal Singh in 2024, with an average age of 73.

Show 9 more questionsShow fewer questions

Is Ajaypal Singh board certified?

Yes. Ajaypal Singh is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Ajaypal Singh bill to Medicare?

In 2024, Ajaypal Singh's most billed Medicare services were diagnostic imaging (74328), surgery: digestive system (43242) and surgery: digestive system (43239).

Where did Ajaypal Singh go to medical school?

Ajaypal Singh graduated from All India Institute of Medical Sciences in 2006.

What drugs does Ajaypal Singh prescribe most?

In 2024 Medicare Part D data, Ajaypal Singh's most prescribed drugs by claims were Gavilyte-G, Sod Sulf-Potass Sulf-Mag Sulf and Peg-3350 And Electrolytes.

Has Ajaypal Singh received payments from drug or device companies?

CMS Open Payments shows $42,654 in general payments to Ajaypal Singh from 19 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Ajaypal Singh been practicing?

Ajaypal Singh graduated from medical school in 2006, 20 years ago.

Does Ajaypal Singh do research?

Dmand AI links 28 publications to Ajaypal Singh, published from 2014 to 2025.

Who does Ajaypal Singh publish with?

Ajaypal Singh's most frequent co-authors are Irving Waxman, MD (7 shared papers), Christopher Grant Chapman, MD (5 shared papers) and Neal Ambrish Mehta (5 shared papers).

What insurance does Ajaypal Singh accept?

Ajaypal Singh is in network with 17 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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