$2,837 in research paymentsEosinophilic EsophagitisEsophagitisDupilumab
Dr. Robert Hardi, MD
NPI1285693440PAC ID5890861249
- Medicare services, 2024
- 627
- Medicare patients, 2024
- 172
- Part D claims, 2024
- 496
- Clinical trials
- 1
- Industry payments
- $116,653
- Practice address
- 11400 Rockville Pike, Suite 108, Rockville, MD 20852
- Practice phone
- Call (301) 770-3334
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rockville Ambulatory Surgery
Surgery Center - Medicare-Certified · Rockville, Maryland
Find Dr. Hardi's professional email, personal email and mobile number
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Dr. Robert Hardi is a gastroenterologist in Rockville, Maryland
Dr. Hardi practices at Rockville Ambulatory Surgery in Rockville, Maryland.
Dr. Hardi's NPI, 1285693440, was assigned on March 17, 2006. Dr. Hardi holds Maryland license D30771.
NPI and contact details
- NPI
- 1285693440NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890861249
- NPI enumeration date
- March 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 770-3334
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Hardi practices at Rockville Ambulatory Surgery in Rockville, Maryland
Dr. Hardi's primary practice is Rockville Ambulatory Surgery, at 11400 Rockville Pike, Suite 108, Rockville, MD 20852. The practice phone is (301) 770-3334.
- Rockville Ambulatory Surgery11400 Rockville Pike, Suite 108, Rockville, MD 20852Phone(301) 770-3334
Source: Dmand AI Affiliation Data
Dr. Robert Hardi is affiliated with 3 sites of care and 2 medical groups
Dr. Hardi's primary practice is Rockville Ambulatory Surgery in Rockville, Maryland. The medical group on file is Digestive Disease Clinic. Dmand AI also links Dr. Hardi to 1 more group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Rockville Ambulatory SurgeryPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Hardi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hardi practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rockville Ambulatory Surgery | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Hardi is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Hardi's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hardi is licensed in Maryland.
Specialties and state licenses
- Gastroenterology, MarylandPrimary
Gastroenterologists near Dr. Hardi
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. Robert Hardi billed Medicare for 627 services in 2024
CMS data shows 627 Medicare services from Dr. Hardi across 9 procedure codes in 2024, for 172 Medicare patients. Medicare paid $49,515 for them.
Medicare services, 2024627
Medicare patients172
Paid by Medicare$49,515
Procedure codes9
Dr. Hardi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3902024: 33414%
- Other services
- 2023: 392024: 234500%
- Surgery
- 2023: 1022024: 5942%
- Lab and pathology
- 2023: 132024: 0100%
Where Dr. Hardi's Medicare services took place, 2024
- In an office55288%
- In a facility7512%
Dr. Hardi compared with the Maryland median for gastroenterologists, 2024
- Dr. Hardi
- Maryland median
- Medicare services
- 627vs 6686% below
- Medicare patients
- 172vs 39056% below
- Part D claims
- 202vs 39248% below
Medians across 396 gastroenterologists in Maryland with Dmand AI profiles that report each measure.
Dr. Hardi'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. Hardi and other gastroenterologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Hardi treated 172 Medicare patients in 2024, average age 76
CMS counts 172 Medicare patients who saw Dr. Hardi in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hardi's median patient age at 51, with 48% women.
Medicare patients, 2024172
Average age76
Average risk score0.92
Dr. Hardi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hardi's Medicare patients by sex, 2024
- Women9555%
- Men7745%
Chronic conditions among Dr. Hardi's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis41%
- Diabetes22%
- Ischemic heart disease22%
- Osteoporosis19%
- Anxiety17%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hardi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women48%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Hardi wrote 496 Medicare Part D claims in 2024
In 2024, Dr. Hardi wrote 496 Medicare Part D claims for 120 patients. 92% of them were for generic drugs. CMS names the drug for 202 of them, across 9 drugs with 11 or more claims each, at $4,487 in total drug cost. In 2023, CMS named 146 claims across 7 drugs.
Part D claims, 2024496
Drugs named by CMS9
Total drug cost$4,487
Part D patients120
Dr. Hardi's Part D claims by kind of drug, 2024
- Generic454 claims92%
- Brand-name and other42 claims8%
Dr. Hardi'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. Hardi's Part D claims, 2024
- Antibiotics5%25 of 496 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: 1462024: 20238%
Drugs named by CMS: 9 in 2024, 7 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
How Dr. Robert Hardi takes part in Medicare
Dr. Hardi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert Hardi has worked on 1 clinical trial
Dmand AI links Dr. Hardi to 1 clinical trial. Conditions studied include Eosinophilic Esophagitis and Esophagitis. Open Payments lists research payments to Dr. Hardi that name 1 trial.
Conditions in Dr. Hardi's trials
- Eosinophilic Esophagitis
- Esophagitis
Investigators on the most trials with Dr. Hardi
- Yehudith Assouline-Dayan, MD1 shared trial
- Mirna Chehade, MD1 shared trial
- Margaret H. Collins, MD1 shared trial
Recent clinical trials with Dr. Hardi
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Hardi received $116,653 in industry payments from 2016 to 2025
CMS Open Payments shows 404 general payments to Dr. Hardi from 33 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 71% of the total. Abbvie Inc. paid the most, $39,799. It also lists 8 research payments totaling $2,837 in 2016, naming 1 clinical trial.
General payments to Dr. Hardi by program year, 2016 to 2025
General payments to Dr. Hardi by kind, 2016 to 2025
$116.7Kin total
- Speaker and faculty fees$82,65971%
- Travel and lodging$12,53111%
- Food and beverage$10,1649%
- Consulting fees$6,0505%
- Education speaker fees$5,2505%
Companies that paid Dr. Hardi the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert Hardi'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Robert Hardi
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. Robert Hardi's NPI number?
Dr. Robert Hardi's NPI number is 1285693440. It was assigned on March 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Hardi?
Dr. Robert Hardi is a gastroenterologist in Rockville, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert Hardi practice?
Dr. Hardi practices at 11400 Rockville Pike, Suite 108, Rockville, MD 20852. Dr. Hardi's primary practice is Rockville Ambulatory Surgery in Rockville, Maryland. Dmand AI also links Dr. Hardi to 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group.
What is Dr. Robert Hardi's office phone number?
The practice phone on file for Dr. Hardi is (301) 770-3334.
What is Dr. Robert Hardi's medical license number?
Dr. Hardi holds Maryland license D30771.
What medical group is Dr. Robert Hardi part of?
Dr. Hardi is linked to Digestive Disease Clinic. Dmand AI links Dr. Hardi to 1 more medical group.
Does Dr. Robert Hardi accept Medicare?
Yes. CMS data shows Dr. Hardi billed Medicare for 627 services in 2024, and Dr. Hardi accepts Medicare assignment.
How many Medicare patients does Dr. Robert Hardi see?
CMS counts 172 Medicare patients who saw Dr. Hardi in 2024, with an average age of 76.
What services does Dr. Robert Hardi bill to Medicare?
In 2024, Dr. Hardi's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99215).
What drugs does Dr. Robert Hardi prescribe most?
In 2024 Medicare Part D data, Dr. Hardi's most prescribed drugs by claims were Pantoprazole Sodium, Sod Sulf-Potass Sulf-Mag Sulf and Atorvastatin Calcium.
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Has Dr. Robert Hardi received payments from drug or device companies?
CMS Open Payments shows $116,653 in general payments to Dr. Hardi from 33 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Robert Hardi been practicing?
Dr. Hardi graduated from medical school in 1972, 54 years ago.
Does Dr. Robert Hardi do research?
Dr. Hardi has worked on 1 clinical trial.
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