Dr. Mumtaz A. Siddiqui, MD
- Medicare services, 2024
- 5,758
- Medicare patients, 2024
- 405
- Part D claims, 2024
- 24
- MIPS score, 2024
- 60
- Hospital affiliations
- 5
- Practice address
- 645 South Central Ave, Chicago, IL 60644
- Practice phone
- Call (773) 626-4300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Siddiqui's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mumtaz A. Siddiqui is a cardiologist in Chicago, Illinois
Dr. Siddiqui practices at Loretto Hospital in Chicago, Illinois, part of The Loretto Hospital.
Dr. Siddiqui's NPI, 1679569925, was assigned on September 22, 2005.
- NPI
- 1679569925NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608845896
- NPI enumeration date
- September 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 626-4300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mumtaz A. Siddiqui practices at Loretto Hospital in Chicago, Illinois
Dr. Siddiqui's primary practice is Loretto Hospital, at 645 South Central Ave, Chicago, IL 60644 in Cook County. The practice phone is (773) 626-4300.
- Loretto Hospital645 South Central Ave, Chicago, IL 60644 · Cook CountyPhone(773) 626-4300
Source: Dmand AI Affiliation Data
Dr. Mumtaz A. Siddiqui is affiliated with 7 sites of care and 2 medical groups
Dr. Siddiqui's primary practice is Loretto Hospital in Chicago, Illinois, part of The Loretto Hospital. Dr. Siddiqui is also affiliated with Northwestern Memorial Hospital. The medical group on file is Cornerstone Specialty Hospitals Tucson. Dmand AI also links Dr. Siddiqui to 3 more hospitals, 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mumtaz A. Siddiqui's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siddiqui practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loretto Hospital | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across The Loretto Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mumtaz A. Siddiqui is one of 908 cardiologists in Illinois
Cardiovascular disease is Dr. Siddiqui's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Siddiqui has a license on file in Illinois.
Specialties and state licenses
- Cardiovascular disease, Illinois
Cardiologists near Dr. Siddiqui
Counts of cardiologists 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. Mumtaz A. Siddiqui billed Medicare for 5,758 services in 2024
CMS data shows 5,758 Medicare services from Dr. Siddiqui across 5 procedure codes in 2024, for 405 Medicare patients. Medicare paid $350,538 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Siddiqui's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5,2312024: 5,6047%
- Tests and treatments
- 2023: 652024: 154137%
Dr. Siddiqui compared with the Illinois median for cardiologists, 2024
- Dr. Siddiqui
- Illinois median
- Medicare services
- 5,758vs 1,9363.0 times
- Medicare patients
- 405vs 1,02360% below
- Part D claims
- 173vs 1,50288% below
Medians across 906 cardiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Siddiqui'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
Dr. Mumtaz A. Siddiqui treated 405 Medicare patients in 2024, average age 74
CMS counts 405 Medicare patients who saw Dr. Siddiqui in 2024. The largest group is 75 to 84, with 146 patients. 75% of them have heart failure, and 75% have high blood pressure. 41% are also on Medicaid. Their average risk score is 4.07, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Siddiqui's median patient age at 72, with 37% women.
Dr. Siddiqui's Medicare patients by age, 2024
Dr. Siddiqui's Medicare patients by sex, 2024
- Women19548%
- Men21052%
Chronic conditions among Dr. Siddiqui's Medicare patients, 2024
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease69%
- Chronic kidney disease67%
- Atrial fibrillation64%
- Arthritis61%
- Diabetes61%
Share of Medicare patients with each condition. A patient can have several.
Dr. Siddiqui's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women37%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mumtaz A. Siddiqui wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Siddiqui wrote 24 Medicare Part D claims. 96% of them were for generic drugs. They cover 2 drugs, with $3,987 in total drug cost. In 2019, CMS named 45 claims across 3 drugs.
Dr. Siddiqui's Part D claims by kind of drug, 2024
- Generic23 claims96%
- Brand-name and other1 claims4%
Dr. Siddiqui's most prescribed drugs by claims, 2023
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, 2019 to 2023
- 2019
- 2023
- Claims for drugs CMS names
- 2019: 452023: 173284%
Drugs named by CMS: 2 in 2023, 3 in 2019.
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. Mumtaz A. Siddiqui scored 60 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 60 out of 100 for Dr. Siddiqui for performance year 2024, reported individually. Dr. Siddiqui accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Siddiqui's MIPS scores, performance year 2024
- 60of 100Final score
- 0of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mumtaz A. Siddiqui received $45 in industry payments from 2017 to 2022
CMS Open Payments shows 2 general payments to Dr. Siddiqui from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $37.
General payments to Dr. Siddiqui by program year, 2017 to 2022
Companies that paid Dr. Siddiqui the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mumtaz A. Siddiqui's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mumtaz A. Siddiqui
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. Mumtaz A. Siddiqui's NPI number?
Dr. Mumtaz A. Siddiqui's NPI number is 1679569925. It was assigned on September 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mumtaz A. Siddiqui?
Dr. Mumtaz A. Siddiqui is a cardiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Mumtaz A. Siddiqui practice?
Dr. Siddiqui practices at 645 South Central Ave, Chicago, IL 60644. Dr. Siddiqui's primary practice is Loretto Hospital in Chicago, Illinois, part of The Loretto Hospital. Dmand AI also links Dr. Siddiqui to 3 hospitals, 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Mumtaz A. Siddiqui's office phone number?
The practice phone on file for Dr. Siddiqui is (773) 626-4300.
Which hospitals is Dr. Mumtaz A. Siddiqui affiliated with?
Dr. Siddiqui practices at Loretto Hospital in Chicago, Illinois. Dr. Siddiqui is also affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Siddiqui to 3 more hospitals.
What medical group is Dr. Mumtaz A. Siddiqui part of?
Dr. Siddiqui is linked to Cornerstone Specialty Hospitals Tucson. Dmand AI links Dr. Siddiqui to 1 more medical group.
Does Dr. Mumtaz A. Siddiqui accept Medicare?
Yes. CMS data shows Dr. Siddiqui billed Medicare for 5,758 services in 2024, and Dr. Siddiqui accepts Medicare assignment.
What is Dr. Mumtaz A. Siddiqui's MIPS score?
Dr. Siddiqui's MIPS final score for performance year 2024 is 60 out of 100, reported individually.
How many Medicare patients does Dr. Mumtaz A. Siddiqui see?
CMS counts 405 Medicare patients who saw Dr. Siddiqui in 2024, with an average age of 74.
What services does Dr. Mumtaz A. Siddiqui bill to Medicare?
In 2024, Dr. Siddiqui's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99222).
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What drugs does Dr. Mumtaz A. Siddiqui prescribe most?
In 2023 Medicare Part D data, Dr. Siddiqui's most prescribed drugs by claims were Milrinone Lactate and Dextrose In Water.
Has Dr. Mumtaz A. Siddiqui received payments from drug or device companies?
CMS Open Payments shows $45 in general payments to Dr. Siddiqui from 2 companies from 2017 to 2022. The largest total came from Abbott Laboratories.
How long has Dr. Mumtaz A. Siddiqui been practicing?
Dr. Siddiqui graduated from medical school in 1983, 43 years ago.
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