Dr. Robert Daniel Weiss, MD
- Medicare services, 2019
- 22
- Part D claims, 2024
- 4,587
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Industry payments
- $4,288
- Practice address
- 10 Wayman Lane, Bar Harbor, ME 04609
- Practice phone
- Call (207) 288-5081
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Weiss' professional email, personal email and mobile number
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Dr. Robert Daniel Weiss is an internist in Bar Harbor, Maine
Dr. Weiss practices at Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital.
Dr. Weiss' NPI, 1538150503, was assigned on October 31, 2005. Dr. Weiss holds Maine license 013771.
- NPI
- 1538150503NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547209314
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 288-5081
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Daniel Weiss practices at Mount Desert Island Hospital in Bar Harbor, Maine
Dr. Weiss' primary practice is Mount Desert Island Hospital, at 10 Wayman Lane, Bar Harbor, ME 04609 in Hancock County. The practice phone is (207) 288-5081.
- Mount Desert Island Hospital10 Wayman Lane, Bar Harbor, ME 04609 · Hancock CountyPhone(207) 288-5081
Source: Dmand AI Affiliation Data
Dr. Robert Daniel Weiss is affiliated with 5 sites of care and 1 medical group
Dr. Weiss' primary practice is Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital. Dr. Weiss is also affiliated with Northern Light Eastern Maine Medical Center. The medical group on file is Mount Desert Island Hospital. Dmand AI also links Dr. Weiss to 1 more hospital, 1 home health agency and 1 therapy and rehab clinic, each named with a free account. Dr. Weiss' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Daniel Weiss' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weiss practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Desert Island Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mount Desert Island Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert Daniel Weiss is one of 572 internists in Maine
Internal medicine is Dr. Weiss' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Weiss is licensed in Maine.
Specialties and state licenses
- Internal medicine, MainePrimary
Internists near Dr. Weiss
Counts of internists 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 Daniel Weiss billed Medicare for 22 services in 2019
CMS data shows 22 Medicare services from Dr. Weiss across 1 procedure code in 2019. Medicare paid $1,177 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Weiss' Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 202019: 2210%
Dr. Weiss compared with the Maine median for internists, 2019
- Dr. Weiss
- Maine median
- Medicare services
- 22vs 31493% below
- Part D claims
- 4,106vs 21119.5 times
Medians across 600 internists in Maine with Dmand AI profiles that report each measure.
Dr. Weiss' most billed Medicare procedure codes, 2019
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. Weiss and other internists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Daniel Weiss' patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Weiss' median patient age at 73, with 45% women.
Dr. Weiss' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women45%
- Men54%
Source: Dmand AI Patient Panel Data
Dr. Robert Daniel Weiss wrote 4,587 Medicare Part D claims in 2024
In 2024, Dr. Weiss wrote 4,587 Medicare Part D claims for 434 patients. 64% of them were for generic drugs. CMS names the drug for 4,106 of them, across 90 drugs with 11 or more claims each, at $1,443,716 in total drug cost. In 2023, CMS named 3,692 claims across 88 drugs.
Dr. Weiss' Part D claims by kind of drug, 2024
- Generic2,924 claims64%
- Brand-name1,618 claims35%
- Other45 claims1%
Dr. Weiss' 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. Weiss' Part D claims, 2024
- Opioids1%68 of 4,587 claims
- Antibiotics10%436 of 4,587 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: 3,6922024: 4,10611%
Drugs named by CMS: 90 in 2024, 88 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. Robert Daniel Weiss scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Weiss for performance year 2024, reported through an alternative payment model (APM). Dr. Weiss accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Weiss' MIPS scores, performance year 2024
- 97of 100Final score
- 83.2of 100Quality
- 100of 100Promoting Interoperability
- 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. Robert Daniel Weiss received $4,288 in industry payments from 2016 to 2025
CMS Open Payments shows 4 general payments to Dr. Weiss from 4 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 96% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $4,100.
General payments to Dr. Weiss by program year, 2016 to 2025
General payments to Dr. Weiss by kind, 2016 to 2025
- Consulting fees$4,10096%
- Food and beverage$1884%
Companies that paid Dr. Weiss 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 Daniel Weiss'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 Data |
| 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. Robert Daniel Weiss
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 Daniel Weiss' NPI number?
Dr. Robert Daniel Weiss' NPI number is 1538150503. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Daniel Weiss?
Dr. Robert Daniel Weiss is an internist in Bar Harbor, Maine. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert Daniel Weiss practice?
Dr. Weiss practices at 10 Wayman Lane, Bar Harbor, ME 04609. Dr. Weiss' primary practice is Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital. Dmand AI also links Dr. Weiss to 1 hospital, 1 home health agency and 1 therapy and rehab clinic.
What is Dr. Robert Daniel Weiss' office phone number?
The practice phone on file for Dr. Weiss is (207) 288-5081.
What is Dr. Robert Daniel Weiss' medical license number?
Dr. Weiss holds Maine license 013771.
Which hospitals is Dr. Robert Daniel Weiss affiliated with?
Dr. Weiss practices at Mount Desert Island Hospital in Bar Harbor, Maine. Dr. Weiss is also affiliated with Northern Light Eastern Maine Medical Center. Dmand AI links Dr. Weiss to 1 more hospital.
What medical group is Dr. Robert Daniel Weiss part of?
Dr. Weiss is linked to Mount Desert Island Hospital.
Does Dr. Robert Daniel Weiss accept Medicare?
Yes. CMS data shows Dr. Weiss billed Medicare for 22 services in 2019, and Dr. Weiss accepts Medicare assignment.
What is Dr. Robert Daniel Weiss' MIPS score?
Dr. Weiss' MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).
What services does Dr. Robert Daniel Weiss bill to Medicare?
In 2019, Dr. Weiss' most billed Medicare services were nursing facility care (99308).
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What drugs does Dr. Robert Daniel Weiss prescribe most?
In 2024 Medicare Part D data, Dr. Weiss' most prescribed drugs by claims were Trelegy Ellipta, Azithromycin and Breo Ellipta.
Has Dr. Robert Daniel Weiss received payments from drug or device companies?
CMS Open Payments shows $4,288 in general payments to Dr. Weiss from 4 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Robert Daniel Weiss been practicing?
Dr. Weiss graduated from medical school in 1985, 41 years ago.
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