Dr. Glenn Gandelman, MD
- Medicare services, 2024
- 11,543
- Medicare patients, 2024
- 2,854
- Part D claims, 2024
- 2,870
- Hospital affiliations
- 4
- Industry payments
- $13,457
- Practice address
- 67 Holly Hill Ln, Greenwich, CT 06830
- Practice phone
- Call (203) 869-5515
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gandelman Cardiology
Greenwich, Connecticut
Find Dr. Gandelman'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. Glenn Gandelman is a cardiologist in Greenwich, Connecticut
Dr. Gandelman practices at Gandelman Cardiology in Greenwich, Connecticut.
Dr. Gandelman's NPI, 1033117437, was assigned on July 9, 2005. Dr. Gandelman graduated from New York Medical College in 1999. Dr. Gandelman holds New York license 218641.
- NPI
- 1033117437NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294781100
- NPI enumeration date
- July 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 869-5515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Glenn Gandelman practices at Gandelman Cardiology in Greenwich, Connecticut
Dr. Gandelman's primary practice is Gandelman Cardiology, at 67 Holly Hill Ln, Greenwich, CT 06830 in Western Ct County. The practice phone is (203) 869-5515.
- Gandelman Cardiology67 Holly Hill Ln, Greenwich, CT 06830 · Western Ct CountyPhone(203) 869-5515
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Glenn Gandelman is affiliated with 13 sites of care and 9 medical groups
Dr. Gandelman's primary practice is Gandelman Cardiology in Greenwich, Connecticut. Dr. Gandelman is also affiliated with Greenwich Hospital. The medical group on file is Greenwich Hospital. Dmand AI also links Dr. Gandelman to 3 more hospitals, 8 medical groups, 6 group practices and clinics, 1 home health agency and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Glenn Gandelman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gandelman practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gandelman Cardiology | Available with a free account |
| +12 more sites and 8 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Glenn Gandelman is one of 423 cardiologists in Connecticut
Cardiovascular disease is Dr. Gandelman's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Gandelman's licenses on file in 3 states: New York, Connecticut and Florida.
Specialties and state licenses
- Cardiovascular disease, New YorkPrimary
- Internal medicine, Connecticut
- Florida license
Cardiologists near Dr. Gandelman
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. Glenn Gandelman billed Medicare for 11,543 services in 2024
CMS data shows 11,543 Medicare services from Dr. Gandelman across 54 procedure codes in 2024, for 2,854 Medicare patients. Medicare paid $847,505 for them.
Dr. Gandelman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 20,0092024: 7,14764%
- Tests and treatments
- 2023: 3,9042024: 3,32315%
- Drugs given in the office
- 2023: 5702024: 5842%
- Other services
- 2023: 3482024: 3334%
- Imaging
- 2023: 1362024: 1457%
- Lab and pathology
- 2023: 02024: 11
Where Dr. Gandelman's Medicare services took place, 2024
- In an office10,88594%
- In a facility6586%
Dr. Gandelman compared with the Connecticut median for cardiologists, 2024
- Dr. Gandelman
- Connecticut median
- Medicare services
- 11,543vs 1,3588.5 times
- Medicare patients
- 2,854vs 6804.2 times
- Part D claims
- 2,553vs 1,57362% above
Medians across 415 cardiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Gandelman'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gandelman and other cardiologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Glenn Gandelman treated 2,854 Medicare patients in 2024, average age 79
CMS counts 2,854 Medicare patients who saw Dr. Gandelman in 2024. The largest group is 75 to 84, with 991 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.22, 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. Gandelman's median patient age at 69, with 48% women.
Dr. Gandelman's Medicare patients by age, 2024
Dr. Gandelman's Medicare patients by sex, 2024
- Women1,69359%
- Men1,16141%
Chronic conditions among Dr. Gandelman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis68%
- Diabetes56%
- Ischemic heart disease46%
- Mood disorders46%
- Depression42%
- Heart failure39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gandelman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women48%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Glenn Gandelman wrote 2,870 Medicare Part D claims in 2024
In 2024, Dr. Gandelman wrote 2,870 Medicare Part D claims for 387 patients. 81% of them were for generic drugs. CMS names the drug for 2,553 of them, across 27 drugs with 11 or more claims each, at $585,799 in total drug cost. In 2023, CMS named 2,459 claims across 33 drugs.
Dr. Gandelman's Part D claims by kind of drug, 2024
- Generic2,317 claims81%
- Brand-name553 claims19%
Dr. Gandelman'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: 2,4592024: 2,5534%
Drugs named by CMS: 27 in 2024, 33 in 2023.
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. Glenn Gandelman offers telehealth to Medicare patients
Dr. Gandelman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gandelman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Glenn Gandelman received $13,457 in industry payments from 2016 to 2025
CMS Open Payments shows 697 general payments to Dr. Gandelman from 61 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,246.
General payments to Dr. Gandelman by program year, 2016 to 2025
General payments to Dr. Gandelman by kind, 2016 to 2025
- Food and beverage$13,19498%
- Education$2622%
Companies that paid Dr. Gandelman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Glenn Gandelman graduated from New York Medical College
Dr. Gandelman graduated from New York Medical College in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Glenn Gandelman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Glenn Gandelman
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. Glenn Gandelman's NPI number?
Dr. Glenn Gandelman's NPI number is 1033117437. It was assigned on July 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Glenn Gandelman?
Dr. Glenn Gandelman is a cardiologist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Glenn Gandelman practice?
Dr. Gandelman practices at 67 Holly Hill Ln, Greenwich, CT 06830. Dr. Gandelman's primary practice is Gandelman Cardiology in Greenwich, Connecticut. Dmand AI also links Dr. Gandelman to 3 hospitals, 8 medical groups, 6 group practices and clinics, 1 home health agency and 1 skilled nursing facility.
What is Dr. Glenn Gandelman's office phone number?
The practice phone on file for Dr. Gandelman is (203) 869-5515.
What is Dr. Glenn Gandelman's medical license number?
Dr. Gandelman holds New York license 218641, one of the licenses on file in 3 states.
Which states has Dr. Glenn Gandelman been licensed in?
Dmand AI has state licenses on file for Dr. Gandelman in New York, Connecticut and Florida.
Which hospitals is Dr. Glenn Gandelman affiliated with?
Dr. Gandelman is affiliated with Greenwich Hospital. Dmand AI links Dr. Gandelman to 3 more hospitals.
What medical group is Dr. Glenn Gandelman part of?
Dr. Gandelman is linked to Greenwich Hospital. Dmand AI links Dr. Gandelman to 8 more medical groups.
Does Dr. Glenn Gandelman accept Medicare?
Yes. CMS data shows Dr. Gandelman billed Medicare for 11,543 services in 2024, and Dr. Gandelman accepts Medicare assignment.
Does Dr. Glenn Gandelman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gandelman as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Glenn Gandelman see?
CMS counts 2,854 Medicare patients who saw Dr. Gandelman in 2024, with an average age of 79.
What services does Dr. Glenn Gandelman bill to Medicare?
In 2024, Dr. Gandelman's most billed Medicare services were care management and other visits (99490), heart test or procedure (93000) and care management and other visits (99457).
Where did Dr. Glenn Gandelman go to medical school?
Dr. Gandelman graduated from New York Medical College in 1999.
What drugs does Dr. Glenn Gandelman prescribe most?
In 2024 Medicare Part D data, Dr. Gandelman's most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Amlodipine Besylate.
Has Dr. Glenn Gandelman received payments from drug or device companies?
CMS Open Payments shows $13,457 in general payments to Dr. Gandelman from 61 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Glenn Gandelman been practicing?
Dr. Gandelman graduated from medical school in 1999, 27 years ago.
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