Dr. Eric Mitchell Leibert, MD
- Medicare services, 2024
- 1,896
- Medicare patients, 2024
- 543
- Part D claims, 2024
- 1,387
- Hospital affiliations
- 4
- Industry payments
- $158
- Practice address
- 5 Perryridge Rd, Greenwich, CT 06830
- Practice phone
- Call (203) 863-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leibert's professional email, personal email and mobile number
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Dr. Eric Mitchell Leibert is a pulmonologist in Greenwich, Connecticut
Dr. Leibert practices at Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System.
Dr. Leibert's NPI, 1568400794, was assigned on June 2, 2006. Dr. Leibert graduated from Columbia University Vagelos College of Physicians and Surgeons in 1988. Dr. Leibert holds New York license 180030.
- NPI
- 1568400794NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840203667
- NPI enumeration date
- June 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 863-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eric Mitchell Leibert practices at Greenwich Hospital in Greenwich, Connecticut
Dr. Leibert's primary practice is Greenwich Hospital, at 5 Perryridge Rd, Greenwich, CT 06830 in Fairfield County. The practice phone is (203) 863-3000.
- Greenwich Hospital5 Perryridge Rd, Greenwich, CT 06830 · Fairfield CountyPhone(203) 863-3000
Source: Dmand AI Affiliation Data
Dr. Eric Mitchell Leibert is affiliated with 4 sites of care and 4 medical groups
Dr. Leibert's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dr. Leibert is also affiliated with Bridgeport Hospital. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Leibert to 2 more hospitals and 3 medical groups, 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. Eric Mitchell Leibert's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leibert practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greenwich Hospital | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric Mitchell Leibert is one of 239 pulmonologists in Connecticut
Pulmonary disease is Dr. Leibert's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Leibert is licensed in New York.
Specialties and state licenses
- Pulmonary disease, New YorkPrimary
Pulmonologists near Dr. Leibert
Counts of pulmonologists 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. Eric Mitchell Leibert billed Medicare for 1,896 services in 2024
CMS data shows 1,896 Medicare services from Dr. Leibert across 15 procedure codes in 2024, for 543 Medicare patients. Medicare paid $141,348 for them.
Dr. Leibert's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1652024: 1,2487%
- Tests and treatments
- 2023: 5222024: 64824%
Where Dr. Leibert's Medicare services took place, 2024
- In an office69837%
- In a facility1,19863%
Dr. Leibert compared with the Connecticut median for pulmonologists, 2024
- Dr. Leibert
- Connecticut median
- Medicare services
- 1,896vs 5283.6 times
- Medicare patients
- 543vs 2472.2 times
- Part D claims
- 1,233vs 62398% above
Medians across 239 pulmonologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Leibert'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.
Need commercial claims for Dr. Leibert?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leibert and other pulmonologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric Mitchell Leibert treated 543 Medicare patients in 2024, average age 79
CMS counts 543 Medicare patients who saw Dr. Leibert in 2024. The largest group is 75 to 84, with 231 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.88, 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. Leibert's median patient age at 76, with 52% women.
Dr. Leibert's Medicare patients by age, 2024
Dr. Leibert's Medicare patients by sex, 2024
- Women28452%
- Men25948%
Chronic conditions among Dr. Leibert's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- COPD45%
- Ischemic heart disease36%
- Anxiety34%
- Atrial fibrillation34%
- Heart failure33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leibert's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric Mitchell Leibert wrote 1,387 Medicare Part D claims in 2024
In 2024, Dr. Leibert wrote 1,387 Medicare Part D claims for 267 patients. CMS names the drug for 1,233 of them, across 27 drugs with 11 or more claims each, at $888,092 in total drug cost. In 2023, CMS named 1,384 claims across 28 drugs.
Dr. Leibert'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. Leibert's Part D claims, 2024
- Antibiotics6%77 of 1,387 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,3842024: 1,23311%
Drugs named by CMS: 27 in 2024, 28 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. Eric Mitchell Leibert offers telehealth to Medicare patients
Dr. Leibert accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Leibert as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Eric Mitchell Leibert received $158 in industry payments from 2016 to 2025
CMS Open Payments shows 7 general payments to Dr. Leibert from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. GlaxoSmithKline, LLC. paid the most, $55.
General payments to Dr. Leibert by program year, 2016 to 2025
General payments to Dr. Leibert by kind, 2016 to 2025
- Food and beverage$12076%
- Education$3824%
Companies that paid Dr. Leibert 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. Eric Mitchell Leibert graduated from Columbia University Vagelos College of Physicians and Surgeons
Dr. Leibert graduated from Columbia University Vagelos College of Physicians and Surgeons in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric Mitchell Leibert'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) |
| 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. Eric Mitchell Leibert
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. Eric Mitchell Leibert's NPI number?
Dr. Eric Mitchell Leibert's NPI number is 1568400794. It was assigned on June 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric Mitchell Leibert?
Dr. Eric Mitchell Leibert is a pulmonologist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Eric Mitchell Leibert practice?
Dr. Leibert practices at 5 Perryridge Rd, Greenwich, CT 06830. Dr. Leibert's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Dr. Leibert to 2 hospitals and 3 medical groups.
What is Dr. Eric Mitchell Leibert's office phone number?
The practice phone on file for Dr. Leibert is (203) 863-3000.
What is Dr. Eric Mitchell Leibert's medical license number?
Dr. Leibert holds New York license 180030.
Which hospitals is Dr. Eric Mitchell Leibert affiliated with?
Dr. Leibert practices at Greenwich Hospital in Greenwich, Connecticut. Dr. Leibert is also affiliated with Bridgeport Hospital. Dmand AI links Dr. Leibert to 2 more hospitals.
What medical group is Dr. Eric Mitchell Leibert part of?
Dr. Leibert is linked to NYU Langone Orthopedic Surgery Associates. Dmand AI links Dr. Leibert to 3 more medical groups.
Does Dr. Eric Mitchell Leibert accept Medicare?
Yes. CMS data shows Dr. Leibert billed Medicare for 1,896 services in 2024, and Dr. Leibert accepts Medicare assignment.
Does Dr. Eric Mitchell Leibert offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Leibert as offering telehealth services.
How many Medicare patients does Dr. Eric Mitchell Leibert see?
CMS counts 543 Medicare patients who saw Dr. Leibert in 2024, with an average age of 79.
Show 5 more questionsShow fewer questions
What services does Dr. Eric Mitchell Leibert bill to Medicare?
In 2024, Dr. Leibert's most billed Medicare services were office visit, established patient (99214), lung function service (94726) and lung function service (94729).
Where did Dr. Eric Mitchell Leibert go to medical school?
Dr. Leibert graduated from Columbia University Vagelos College of Physicians and Surgeons in 1988.
What drugs does Dr. Eric Mitchell Leibert prescribe most?
In 2024 Medicare Part D data, Dr. Leibert's most prescribed drugs by claims were Albuterol Sulfate Hfa, Anoro Ellipta and Breo Ellipta.
Has Dr. Eric Mitchell Leibert received payments from drug or device companies?
CMS Open Payments shows $158 in general payments to Dr. Leibert from 5 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Eric Mitchell Leibert been practicing?
Dr. Leibert graduated from medical school in 1988, 38 years ago.
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