Dr. Robert F. Zimmerman III, MD
- Medicare services, 2021
- 113
- Part D claims, 2021
- 254
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- State license
- 1
- Practice address
- 111 Franklin Health Commons, Farmington, ME 04938
- Practice phone
- Call (207) 778-6031
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zimmerman'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. Robert F. Zimmerman III is a nephrologist in Farmington, Maine
Dr. Zimmerman practices at MaineHealth Franklin Hospital in Farmington, Maine, part of MaineHealth.
Dr. Zimmerman's NPI, 1972504025, was assigned on August 10, 2005. Dr. Zimmerman graduated from Columbia University College of Physicians and Surgeons in 1991. Dr. Zimmerman holds Maine license MD15106.
- NPI
- 1972504025NPI Registry (opens in a new tab)
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Practice phone
- (207) 778-6031
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert F. Zimmerman III practices at MaineHealth Franklin Hospital in Farmington, Maine
Dr. Zimmerman's primary practice is MaineHealth Franklin Hospital, at 111 Franklin Health Commons, Farmington, ME 04938 in Franklin County. The practice phone is (207) 778-6031.
- MaineHealth Franklin Hospital111 Franklin Health Commons, Farmington, ME 04938 · Franklin CountyPhone(207) 778-6031
Source: Dmand AI Affiliation Data
Dr. Robert F. Zimmerman III is affiliated with 1 site of care
Dr. Zimmerman's primary practice is MaineHealth Franklin Hospital in Farmington, Maine, part of MaineHealth. Dr. Zimmerman's 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 F. Zimmerman III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Franklin Hospital | 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 MaineHealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert F. Zimmerman III is one of 38 nephrologists in Maine
Nephrology is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Zimmerman is licensed in Maine.
Specialties and state licenses
- Nephrology, MainePrimary
Nephrologists near Dr. Zimmerman
Counts of nephrologists 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 F. Zimmerman III billed Medicare for 113 services in 2021
CMS data shows 113 Medicare services from Dr. Zimmerman across 5 procedure codes in 2021. Medicare paid $9,189 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zimmerman's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 6562021: 6291%
- Tests and treatments
- 2020: 1972021: 3781%
- Surgery
- 2020: 5272021: 1497%
- Drugs given in the office
- 2020: 9252021: 0100%
- Imaging
- 2020: 132021: 0100%
- Lab and pathology
- 2020: 1,2422021: 0100%
Dr. Zimmerman compared with the Maine median for nephrologists, 2021
- Dr. Zimmerman
- Maine median
- Medicare services
- 113vs 41173% below
- Part D claims
- 254vs 35829% below
Medians across 40 nephrologists in Maine with Dmand AI profiles that report each measure.
Dr. Zimmerman's most billed Medicare procedure codes, 2021
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. Zimmerman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimmerman and other nephrologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert F. Zimmerman III's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 68, with 100% women.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Robert F. Zimmerman III wrote 254 Medicare Part D claims in 2021
In 2021, Dr. Zimmerman wrote 254 Medicare Part D claims. Every claim was for a generic drug. They cover 9 drugs, with $5,462 in total drug cost. In 2020, CMS named 793 claims across 16 drugs.
Dr. Zimmerman's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 7932021: 25468%
Drugs named by CMS: 9 in 2021, 16 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Robert F. Zimmerman III scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Zimmerman for performance year 2024, reported through an alternative payment model (APM).
Dr. Zimmerman's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Robert F. Zimmerman III graduated from Columbia University College of Physicians and Surgeons
Dr. Zimmerman graduated from Columbia University College of Physicians and Surgeons in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert F. Zimmerman III'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (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. Robert F. Zimmerman III
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 F. Zimmerman III's NPI number?
Dr. Robert F. Zimmerman III's NPI number is 1972504025. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert F. Zimmerman III?
Dr. Robert F. Zimmerman III is a nephrologist in Farmington, Maine. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Robert F. Zimmerman III practice?
Dr. Zimmerman practices at 111 Franklin Health Commons, Farmington, ME 04938. Dr. Zimmerman's primary practice is MaineHealth Franklin Hospital in Farmington, Maine, part of MaineHealth.
What is Dr. Robert F. Zimmerman III's office phone number?
The practice phone on file for Dr. Zimmerman is (207) 778-6031.
What is Dr. Robert F. Zimmerman III's medical license number?
Dr. Zimmerman holds Maine license MD15106.
Which hospitals is Dr. Robert F. Zimmerman III affiliated with?
Dr. Zimmerman practices at MaineHealth Franklin Hospital in Farmington, Maine.
Does Dr. Robert F. Zimmerman III accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 113 services in 2021.
What is Dr. Robert F. Zimmerman III's MIPS score?
Dr. Zimmerman's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
What services does Dr. Robert F. Zimmerman III bill to Medicare?
In 2021, Dr. Zimmerman's most billed Medicare services were dialysis (90935), hospital inpatient care (99232) and hospital inpatient care (99222).
Where did Dr. Robert F. Zimmerman III go to medical school?
Dr. Zimmerman graduated from Columbia University College of Physicians and Surgeons in 1991.
What drugs does Dr. Robert F. Zimmerman III prescribe most?
In 2021 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Furosemide.
How long has Dr. Robert F. Zimmerman III been practicing?
Dr. Zimmerman graduated from medical school in 1991, 35 years ago.
Selling to nephrology practices?
See nephrologists in Maine by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card