Dr. Philip N. Zimmermann, MD

  • Middleton, WI
  • Internist
NPI1477783801
Medicare services, 2024
319
Medicare patients, 2024
152
Part D claims, 2024
3,615
Publications
1
Clinical trials
1
Practice address
9401 Old Sauk Rd, Middleton, WI 53562
Practice phone
Call (608) 257-2208
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Midwestern Center for Plastic Surgery

Middleton, Wisconsin

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Dr. Philip N. Zimmermann is an internist in Middleton, Wisconsin

Dr. Zimmermann practices at Midwestern Center for Plastic Surgery in Middleton, Wisconsin.

Dr. Zimmermann's NPI, 1477783801, was assigned on July 20, 2009. Dr. Zimmermann graduated from University of Wisconsin School of Medicine in 2009. Dr. Zimmermann holds Wisconsin license 55123.

NPI and contact details
NPI enumeration date
July 20, 2009
NPI status
Active
Practice phone
(608) 257-2208
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Philip N. Zimmermann practices at Midwestern Center for Plastic Surgery in Middleton, Wisconsin

Dr. Zimmermann's primary practice is Midwestern Center for Plastic Surgery, at 9401 Old Sauk Rd, Middleton, WI 53562 in Dane County. The practice phone is (608) 257-2208.

  • Midwestern Center for Plastic Surgery
    9401 Old Sauk Rd, Middleton, WI 53562 · Dane CountyPhone(608) 257-2208

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Philip N. Zimmermann is affiliated with 1 site of care and 1 medical group

Dr. Zimmermann's primary practice is Midwestern Center for Plastic Surgery in Middleton, Wisconsin. The medical group on file is UW Health.

Midwestern Center for Plastic SurgeryMiddleton, WisconsinPrimary
UW HealthPrimary care group, Middleton, WI

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Philip N. Zimmermann's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmermann practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Midwestern Center for Plastic SurgeryAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Philip N. Zimmermann is one of 1,675 internists in Wisconsin

Internal medicine is Dr. Zimmermann's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zimmermann is licensed in Wisconsin.

Specialties and state licenses

  • Internal medicine, WisconsinPrimaryLicense 55123 · taxonomy 207R00000X

Internists near Dr. Zimmermann

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. Philip N. Zimmermann billed Medicare for 319 services in 2024

CMS data shows 319 Medicare services from Dr. Zimmermann across 3 procedure codes in 2024, for 152 Medicare patients. Medicare paid $5,932 for them. Every service was in an office.

Medicare services, 2024319
Medicare patients152
Paid by Medicare$5,932
Procedure codes3

Dr. Zimmermann's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Other services
2023: 292024: 119310%
Office and hospital visits
2023: 3792024: 11270%
Surgery
2023: 2892024: 8870%
Lab and pathology
2023: 242024: 0100%
Tests and treatments
2023: 172024: 0100%

Dr. Zimmermann compared with the Wisconsin median for internists, 2024

  • Dr. Zimmermann
  • Wisconsin median
Medicare services
319vs 45730% below
Medicare patients
152vs 19924% below
Part D claims
2,926vs 4336.8 times

Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.

Dr. Zimmermann'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.

See all procedures by Dr. Zimmermann

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Philip N. Zimmermann treated 152 Medicare patients in 2024, average age 75

CMS counts 152 Medicare patients who saw Dr. Zimmermann in 2024. The largest group is 75 to 84, with 66 patients. 61% of them have high blood pressure, and 46% have high cholesterol. Their average risk score is 0.96, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Zimmermann's median patient age at 70, with 29% women.

Medicare patients, 2024152
Average age75
Average risk score0.96

Dr. Zimmermann's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Zimmermann's Medicare patients by sex, 2024

  • Women5939%
  • Men9361%

Chronic conditions among Dr. Zimmermann's Medicare patients, 2024

  1. High blood pressure61%
  2. High cholesterol46%
  3. Arthritis32%
  4. Diabetes30%
  5. Mood disorders24%
  6. Anxiety21%
  7. Chronic kidney disease21%
  8. Depression21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Zimmermann's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women29%
  • Men71%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Philip N. Zimmermann wrote 3,615 Medicare Part D claims in 2024

In 2024, Dr. Zimmermann wrote 3,615 Medicare Part D claims for 411 patients. 84% of them were for generic drugs. CMS names the drug for 2,926 of them, across 75 drugs with 11 or more claims each, at $276,201 in total drug cost. In 2023, CMS named 5,641 claims across 121 drugs.

Part D claims, 20243,615
Drugs named by CMS75
Total drug cost$276,201
Part D patients411

Dr. Zimmermann's Part D claims by kind of drug, 2024

  • Generic3,030 claims84%
  • Brand-name543 claims15%
  • Other42 claims1%

Dr. Zimmermann'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. Zimmermann's Part D claims, 2024

  • Opioids2%83 of 3,615 claims
  • Antibiotics1%44 of 3,615 claims
  • Antipsychotics, patients 65 and over1%45 of 3,615 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: 5,6412024: 2,92648%

Drugs named by CMS: 75 in 2024, 121 in 2023.

See all prescribing by Dr. Zimmermann

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. Philip N. Zimmermann scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Zimmermann for performance year 2024, reported as part of a group.

Dr. Zimmermann's MIPS scores, performance year 2024

  • 83of 100Final score
  • 87.8of 100Quality
  • 77of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

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

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Dr. Philip N. Zimmermann has 1 publication on record

Dmand AI links 1 paper to Dr. Zimmermann. Dr. Zimmermann's most frequent co-author is David A. Feldstein, MD.

Papers1

Dr. Zimmermann's most frequent co-authors

Recent publications by Dr. Zimmermann

See all 1 publications and co-authors

See who Dr. Zimmermann researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zimmermann works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Philip N. Zimmermann has worked on 1 clinical trial

Dmand AI links Dr. Zimmermann to 1 clinical trial. Conditions studied include Intermittent Fasting and Fasting.

Conditions in Dr. Zimmermann's trials

  • Intermittent Fasting
  • Fasting

Investigators on the most trials with Dr. Zimmermann

Recent clinical trials with Dr. Zimmermann

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Philip N. Zimmermann graduated from University of Wisconsin School of Medicine

Dr. Zimmermann graduated from University of Wisconsin School of Medicine in 2009.

  1. Medical schoolUniversity of Wisconsin School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Philip N. Zimmermann's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Philip N. Zimmermann

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. Philip N. Zimmermann's NPI number?

Dr. Philip N. Zimmermann's NPI number is 1477783801. It was assigned on July 20, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Philip N. Zimmermann?

Dr. Philip N. Zimmermann is an internist in Middleton, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Philip N. Zimmermann practice?

Dr. Zimmermann practices at 9401 Old Sauk Rd, Middleton, WI 53562. Dr. Zimmermann's primary practice is Midwestern Center for Plastic Surgery in Middleton, Wisconsin.

What is Dr. Philip N. Zimmermann's office phone number?

The practice phone on file for Dr. Zimmermann is (608) 257-2208.

What is Dr. Philip N. Zimmermann's medical license number?

Dr. Zimmermann holds Wisconsin license 55123.

What medical group is Dr. Philip N. Zimmermann part of?

Dr. Zimmermann is linked to UW Health.

Does Dr. Philip N. Zimmermann accept Medicare?

Yes. CMS data shows Dr. Zimmermann billed Medicare for 319 services in 2024.

What is Dr. Philip N. Zimmermann's MIPS score?

Dr. Zimmermann's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Philip N. Zimmermann see?

CMS counts 152 Medicare patients who saw Dr. Zimmermann in 2024, with an average age of 75.

What services does Dr. Philip N. Zimmermann bill to Medicare?

In 2024, Dr. Zimmermann's most billed Medicare services were medicare service (G2211), office visit, established patient (99213) and surgery: heart and blood vessels (36415).

Show 5 more questionsShow fewer questions

Where did Dr. Philip N. Zimmermann go to medical school?

Dr. Zimmermann graduated from University of Wisconsin School of Medicine in 2009.

What drugs does Dr. Philip N. Zimmermann prescribe most?

In 2024 Medicare Part D data, Dr. Zimmermann's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.

How long has Dr. Philip N. Zimmermann been practicing?

Dr. Zimmermann graduated from medical school in 2009, 17 years ago.

Does Dr. Philip N. Zimmermann do research?

Dmand AI links 1 publication to Dr. Zimmermann. Dr. Zimmermann has worked on 1 clinical trial.

Who does Dr. Philip N. Zimmermann publish with?

Dr. Zimmermann's most frequent co-authors are David A. Feldstein, MD (1 shared paper).

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