Dr. Kate D. Zimmerman, DO
- Medicare services, 2024
- 91
- Medicare patients, 2024
- 110
- Part D claims, 2024
- 21
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- 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
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Dr. Kate D. Zimmerman is an emergency medicine physician in Portland, Maine
Dr. Zimmerman practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Zimmerman's NPI, 1215030028, was assigned on September 7, 2006. Dr. Zimmerman graduated from University of New England, College of Osteo Medicine in 2002. Dr. Zimmerman holds Maine license 1911.
- NPI
- 1215030028NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901974971
- NPI enumeration date
- September 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kate D. Zimmerman practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Zimmerman's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. Kate D. Zimmerman is affiliated with 1 site of care and 1 medical group
Dr. Zimmerman's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. 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. Kate D. Zimmerman'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 Maine Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kate D. Zimmerman is one of 410 emergency medicine physicians in Maine
Emergency medicine is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Zimmerman is licensed in Maine.
Specialties and state licenses
- Emergency medicine, MainePrimary
Emergency medicine physicians near Dr. Zimmerman
Counts of emergency medicine physicians 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. Kate D. Zimmerman billed Medicare for 91 services in 2024
CMS data shows 91 Medicare services from Dr. Zimmerman across 2 procedure codes in 2024, for 110 Medicare patients. Medicare paid $11,384 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zimmerman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1282024: 9129%
Dr. Zimmerman compared with the Maine median for emergency medicine physicians, 2024
- Dr. Zimmerman
- Maine median
- Medicare services
- 91vs 18451% below
- Medicare patients
- 110vs 19544% below
Medians across 426 emergency medicine physicians in Maine with Dmand AI profiles that report each measure.
Dr. Zimmerman'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kate D. Zimmerman treated 110 Medicare patients in 2024, average age 71
CMS counts 110 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 45% are also on Medicaid. Their average risk score is 1.83, 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. Zimmerman's median patient age at 60, with 50% women.
Dr. Zimmerman's Medicare patients by age, 2024
Dr. Zimmerman's Medicare patients by sex, 2024
- Women6559%
- Men4541%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Mood disorders54%
- Anxiety49%
- Depression45%
- Arthritis43%
- Ischemic heart disease38%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
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 60
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kate D. Zimmerman wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 21 Medicare Part D claims for 17 patients. 90% of them were for generic drugs.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic19 claims90%
- Brand-name and other2 claims10%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Kate D. Zimmerman 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 accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
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.
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. Kate D. Zimmerman graduated from University of New England, College of Osteo Medicine
Dr. Zimmerman graduated from University of New England, College of Osteo Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kate D. Zimmerman'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 (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) |
| 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. Kate D. Zimmerman
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What is Dr. Kate D. Zimmerman's NPI number?
Dr. Kate D. Zimmerman's NPI number is 1215030028. It was assigned on September 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kate D. Zimmerman?
Dr. Kate D. Zimmerman is an emergency medicine physician in Portland, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Kate D. Zimmerman practice?
Dr. Zimmerman practices at 22 Bramhall St, Portland, ME 04102. Dr. Zimmerman's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
What is Dr. Kate D. Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (207) 662-0111.
What is Dr. Kate D. Zimmerman's medical license number?
Dr. Zimmerman holds Maine license 1911.
Which hospitals is Dr. Kate D. Zimmerman affiliated with?
Dr. Zimmerman practices at MaineHealth Maine Medical Center in Portland, Maine.
What medical group is Dr. Kate D. Zimmerman part of?
Dr. Zimmerman is linked to MaineHealth Primary Care - Family Medicine - Portland.
Does Dr. Kate D. Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 91 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
What is Dr. Kate D. Zimmerman'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).
How many Medicare patients does Dr. Kate D. Zimmerman see?
CMS counts 110 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 71.
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What services does Dr. Kate D. Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).
Where did Dr. Kate D. Zimmerman go to medical school?
Dr. Zimmerman graduated from University of New England, College of Osteo Medicine in 2002.
How long has Dr. Kate D. Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 2002, 24 years ago.
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