Dr. Lara L. Zimmermann, MD

  • Sacramento, CA
  • Neurocritical care physician
NPI1740504307PAC ID4385876416
Medicare services, 2024
306
Medicare patients, 2024
115
Publications
9
Clinical trials
1
MIPS score, 2024
83
Practice address
2315 Stockton Boulevard, Sacramento, CA 95817
Practice phone
Call (916) 734-2011
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UC Davis Medical Center

Hospital · Sacramento, California

See all 3 affiliations

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Dr. Lara L. Zimmermann is a neurocritical care physician in Sacramento, California

Dr. Zimmermann practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.

Dr. Zimmermann's NPI, 1740504307, was assigned on March 24, 2010. Dr. Zimmermann graduated from David Geffen School of Medicine at UCLA in 2010. Dr. Zimmermann holds California license A119133.

NPI and contact details
Medicare PAC ID
4385876416
NPI enumeration date
March 24, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(916) 734-2011
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Lara L. Zimmermann practices at UC Davis Medical Center in Sacramento, California

Dr. Zimmermann's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.

Source: Dmand AI Affiliation Data

Dr. Lara L. Zimmermann is affiliated with 2 sites of care and 1 medical group

Dr. Zimmermann's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Zimmermann to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Zimmermann

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Lara L. Zimmermann's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmermann practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UC Davis Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Lara L. Zimmermann is one of 60 neurocritical care physicians in California

Neurocritical care is Dr. Zimmermann's primary specialty in the NPI Registry, under taxonomy code 2084A2900X. Dr. Zimmermann is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Zimmermann is licensed in California.

Specialties and state licenses

  • Neurocritical care, CaliforniaPrimaryLicense A119133 · 2019 to 2027 · taxonomy 2084A2900X

Neurocritical care physicians near Dr. Zimmermann

Counts of neurocritical care 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. Lara L. Zimmermann billed Medicare for 306 services in 2024

CMS data shows 306 Medicare services from Dr. Zimmermann across 4 procedure codes in 2024, for 115 Medicare patients. Medicare paid $37,983 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024306
Medicare patients115
Paid by Medicare$37,983
Procedure codes4

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

  • 2023
  • 2024
Office and hospital visits
2023: 3012024: 3062%

Dr. Zimmermann compared with the California median for neurocritical care physicians, 2024

  • Dr. Zimmermann
  • California median
Medicare services
306vs 3246% below
Medicare patients
115vs 12810% below

Medians across 62 neurocritical care physicians in California 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimmermann and other neurocritical care physicians in California.

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

Dr. Lara L. Zimmermann treated 115 Medicare patients in 2024, average age 71

CMS counts 115 Medicare patients who saw Dr. Zimmermann in 2024. The largest group is 65 to 74, with 63 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 1.71, 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. Zimmermann's median patient age at 58, with 48% women.

Medicare patients, 2024115
Average age71
Average risk score1.71
Also on Medicaid50%

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

  • Women5649%
  • Men5951%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Stroke or TIA75%
  4. Arthritis47%
  5. Diabetes43%
  6. Atrial fibrillation42%
  7. Mood disorders41%
  8. Chronic kidney disease39%

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 58

Patient panel by sex, all payers

  • Women48%
  • Men52%

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

Dr. Lara L. 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 accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Zimmermann's MIPS scores, performance year 2024

  • 83of 100Final score
  • 64.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 69of 100Cost

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

For MedTech and pharma teams

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Dr. Lara L. Zimmermann has 9 publications on record

Dmand AI links 9 papers to Dr. Zimmermann, published from 2014 to 2018. 2014 was the busiest year, with 2. Dr. Zimmermann has published most often in J Thromb Thrombolysis. Dr. Zimmermann's most frequent co-authors are Ryan M. Martin, MD, Leonid Izevich Groysman, MD and Geoffrey Todd Manley, MD, PhD.

Papers9
Years published2014 to 2018

Dr. Zimmermann's papers by year, 2014 to 2018

Dr. Zimmermann's most frequent co-authors

Recent publications by Dr. Zimmermann

See all 9 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 neurocritical care physicians.

How network discovery works

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

Dr. Lara L. Zimmermann has worked on 1 clinical trial

Dmand AI links Dr. Zimmermann to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Cerebral Hemorrhage and Intracranial Hemorrhages.

Conditions in Dr. Zimmermann's trials

  • Cerebral Hemorrhage
  • Intracranial Hemorrhages

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. Lara L. Zimmermann received $1,815 in industry payments from 2016 to 2024

CMS Open Payments shows 17 general payments to Dr. Zimmermann from 11 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 80% of the total. ZOLL Medical Corporation paid the most, $461.

General payments to Dr. Zimmermann by program year, 2016 to 2024

General payments to Dr. Zimmermann by kind, 2016 to 2024

$1.8Kin total
  • Food and beverage$1,45380%
  • Consulting fees$36320%

Companies that paid Dr. Zimmermann the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Zimmermann

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Lara L. Zimmermann graduated from David Geffen School of Medicine at UCLA

Dr. Zimmermann graduated from David Geffen School of Medicine at UCLA in 2010.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Lara L. Zimmermann accepts plans from 7 insurance carriers

Dr. Zimmermann is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • CMS Medicare
  • Elevance
  • GA State Medicaid
  • NV State Medicaid

Plan types Dr. Zimmermann accepts, by number of carriers

  1. Medicare5
  2. PPO3
  3. Medicaid2
  4. HMO1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Lara L. 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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Lara L. 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. Lara L. Zimmermann's NPI number?

Dr. Lara L. Zimmermann's NPI number is 1740504307. It was assigned on March 24, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Lara L. Zimmermann?

Dr. Lara L. Zimmermann is a neurocritical care physician in Sacramento, California. The primary specialty in the NPI Registry is Neurocritical Care Physician (taxonomy code 2084A2900X).

Where does Dr. Lara L. Zimmermann practice?

Dr. Zimmermann practices at 2315 Stockton Boulevard, Sacramento, CA 95817. Dr. Zimmermann's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dmand AI also links Dr. Zimmermann to 1 group practice or clinic.

What is Dr. Lara L. Zimmermann's office phone number?

The practice phone on file for Dr. Zimmermann is (916) 734-2011.

What is Dr. Lara L. Zimmermann's medical license number?

Dr. Zimmermann holds California license A119133.

Which hospitals is Dr. Lara L. Zimmermann affiliated with?

Dr. Zimmermann practices at UC Davis Medical Center in Sacramento, California.

What medical group is Dr. Lara L. Zimmermann part of?

Dr. Zimmermann is linked to UC Davis Medical Group.

Does Dr. Lara L. Zimmermann accept Medicare?

Yes. CMS data shows Dr. Zimmermann billed Medicare for 306 services in 2024, and Dr. Zimmermann accepts Medicare assignment.

What is Dr. Lara L. 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. Lara L. Zimmermann see?

CMS counts 115 Medicare patients who saw Dr. Zimmermann in 2024, with an average age of 71.

Show 8 more questionsShow fewer questions

Is Dr. Lara L. Zimmermann board certified?

Yes. Dr. Zimmermann is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Lara L. Zimmermann bill to Medicare?

In 2024, Dr. Zimmermann's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99233).

Where did Dr. Lara L. Zimmermann go to medical school?

Dr. Zimmermann graduated from David Geffen School of Medicine at UCLA in 2010.

Has Dr. Lara L. Zimmermann received payments from drug or device companies?

CMS Open Payments shows $1,815 in general payments to Dr. Zimmermann from 11 companies from 2016 to 2024. The largest total came from ZOLL Medical Corporation.

How long has Dr. Lara L. Zimmermann been practicing?

Dr. Zimmermann graduated from medical school in 2010, 16 years ago.

Does Dr. Lara L. Zimmermann do research?

Dmand AI links 9 publications to Dr. Zimmermann, published from 2014 to 2018. Dr. Zimmermann has worked on 1 clinical trial.

Who does Dr. Lara L. Zimmermann publish with?

Dr. Zimmermann's most frequent co-authors are Ryan M. Martin, MD (4 shared papers), Leonid Izevich Groysman, MD (2 shared papers) and Geoffrey Todd Manley, MD, PhD (2 shared papers).

What insurance does Dr. Lara L. Zimmermann accept?

Dr. Zimmermann is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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