Dr. Lars Widdel, MD
- Medicare services, 2024
- 928
- Medicare patients, 2024
- 469
- Part D claims, 2024
- 124
- Publications
- 7
- Hospital affiliations
- 5
- Practice address
- 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001
- Practice phone
- Call (530) 225-6102
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Widdel'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. Lars Widdel is a neurosurgeon in Redding, California
Dr. Widdel practices at Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health.
Dr. Widdel's NPI, 1447397708, was assigned on January 30, 2007. Dr. Widdel graduated from University of Chile in 2002. Dr. Widdel holds California license C171096.
- NPI
- 1447397708NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032380449
- NPI enumeration date
- January 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (530) 225-6102
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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. Lars Widdel practices at Mercy Medical Center Redding in Redding, California
Dr. Widdel's primary practice is Mercy Medical Center Redding, at 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001 in Shasta County. The practice phone is (530) 225-6102.
- Mercy Medical Center Redding2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001 · Shasta CountyPhone(530) 225-6102
Source: Dmand AI Affiliation Data
Dr. Lars Widdel is affiliated with 7 sites of care and 1 medical group
Dr. Widdel's primary practice is Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health. Dr. Widdel is also affiliated with Dignity Health - St. Elizabeth Community Hospital. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Widdel to 3 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lars Widdel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Widdel practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center Redding | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lars Widdel is one of 846 neurosurgeons in California
Neurological surgery is Dr. Widdel's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Widdel is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Widdel's licenses on file in 4 states: California, Colorado, Wyoming and Alabama.
Specialties and state licenses
- Neurological surgery, CaliforniaPrimary
- Colorado license
- Wyoming license
- Alabama license
Clinical focus
Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Widdel treats.
Neurosurgeons near Dr. Widdel
Counts of neurosurgeons 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. Lars Widdel billed Medicare for 928 services in 2024
CMS data shows 928 Medicare services from Dr. Widdel across 20 procedure codes in 2024, for 469 Medicare patients. Medicare paid $216,446 for them.
Dr. Widdel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5552024: 62012%
- Surgery
- 2023: 2382024: 30829%
Where Dr. Widdel's Medicare services took place, 2024
- In an office51455%
- In a facility41445%
Dr. Widdel compared with the California median for neurosurgeons, 2024
- Dr. Widdel
- California median
- Medicare services
- 928vs 2164.3 times
- Medicare patients
- 469vs 1543.0 times
- Part D claims
- 51vs 2696% above
Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.
Dr. Widdel'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.
Need commercial claims for Dr. Widdel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Widdel and other neurosurgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lars Widdel treated 469 Medicare patients in 2024, average age 73
CMS counts 469 Medicare patients who saw Dr. Widdel in 2024. The largest group is 65 to 74, with 213 patients. 75% of them have arthritis, and 75% have high blood pressure. 27% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Widdel's median patient age at 67, with 50% women.
Dr. Widdel's Medicare patients by age, 2024
Dr. Widdel's Medicare patients by sex, 2024
- Women25655%
- Men21345%
Chronic conditions among Dr. Widdel's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol72%
- Anxiety32%
- Diabetes32%
- Mood disorders30%
- Depression27%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Widdel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
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. Lars Widdel wrote 124 Medicare Part D claims in 2024
In 2024, Dr. Widdel wrote 124 Medicare Part D claims for 72 patients. 97% of them were for generic drugs. CMS names the drug for 51 of them, across 2 drugs with 11 or more claims each, at $298 in total drug cost. In 2023, CMS named 50 claims across 3 drugs.
Dr. Widdel's Part D claims by kind of drug, 2024
- Generic120 claims97%
- Brand-name and other4 claims3%
Dr. Widdel'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. Widdel's Part D claims, 2024
- Opioids53%66 of 124 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: 502024: 512%
Drugs named by CMS: 2 in 2024, 3 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. Lars Widdel ranks in the 94th percentile for laminectomy or laminotomy (partial removal of spine bones) in Medicare
Dr. Widdel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Widdel as offering telehealth. CMS counts 102 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Widdel, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Widdel ranks in Medicare procedure volume
- Spinal fusion
- 93rd percentile240 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 94th percentile102 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lars Widdel has 7 publications on record
Dmand AI links 7 papers to Dr. Widdel in 2010. 2010 was the busiest year, with 2. The most frequent topics are Magnetic Resonance Imaging, Diagnosis, Differential and Meninges. Dr. Widdel's most frequent co-authors are Janice Kerr, MD and Kevin O. Lillehei, MD.
Topics Dr. Widdel writes about most
- Magnetic Resonance Imaging
- Diagnosis, Differential
- Meninges
Dr. Widdel's most frequent co-authors
Recent publications by Dr. Widdel
J Neurosurg Pediatr
See who Dr. Widdel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Widdel works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lars Widdel received $147 in industry payments from 2016 to 2022
CMS Open Payments shows 2 general payments to Dr. Widdel from 2 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $126.
General payments to Dr. Widdel by program year, 2016 to 2022
Companies that paid Dr. Widdel the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lars Widdel has 1 award and honors on record
Dmand AI lists 1 award for Dr. Widdel, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Widdel
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Lars Widdel graduated from University of Chile
Dr. Widdel graduated from University of Chile in 2002. Dr. Widdel is a member of AANS and CNS.
- Medical school
- Board certified in neurological surgery
Source: Dmand AI Professional Profile Data
Dr. Lars Widdel accepts plans from 13 insurance carriers
Dr. Widdel is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Widdel accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Lars Widdel'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Lars Widdel
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. Lars Widdel's NPI number?
Dr. Lars Widdel's NPI number is 1447397708. It was assigned on January 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Lars Widdel?
Dr. Lars Widdel is a neurosurgeon in Redding, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Lars Widdel practice?
Dr. Widdel practices at 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001. Dr. Widdel's primary practice is Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health. Dmand AI also links Dr. Widdel to 3 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Lars Widdel's office phone number?
The practice phone on file for Dr. Widdel is (530) 225-6102.
What is Dr. Lars Widdel's medical license number?
Dr. Widdel holds California license C171096, one of the licenses on file in 4 states.
Which states has Dr. Lars Widdel been licensed in?
Dmand AI has state licenses on file for Dr. Widdel in California (2020 to 2026), Colorado (2008 to 2027), Wyoming (2020 to 2025) and Alabama (2020 to 2021).
Which hospitals is Dr. Lars Widdel affiliated with?
Dr. Widdel practices at Mercy Medical Center Redding in Redding, California. Dr. Widdel is also affiliated with Dignity Health - St. Elizabeth Community Hospital. Dmand AI links Dr. Widdel to 3 more hospitals.
What medical group is Dr. Lars Widdel part of?
Dr. Widdel is linked to Mercy Medical Group.
Does Dr. Lars Widdel accept Medicare?
Yes. CMS data shows Dr. Widdel billed Medicare for 928 services in 2024, and Dr. Widdel accepts Medicare assignment.
Does Dr. Lars Widdel offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Widdel as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Lars Widdel see?
CMS counts 469 Medicare patients who saw Dr. Widdel in 2024, with an average age of 73.
Is Dr. Lars Widdel board certified?
Yes. Dr. Widdel is board certified in neurological surgery by the American Board of Neurological Surgery.
What services does Dr. Lars Widdel bill to Medicare?
In 2024, Dr. Widdel's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99204) and hospital inpatient care (99222).
Where did Dr. Lars Widdel go to medical school?
Dr. Widdel graduated from University of Chile in 2002.
What drugs does Dr. Lars Widdel prescribe most?
In 2024 Medicare Part D data, Dr. Widdel's most prescribed drugs by claims were Tramadol HCl and Hydrocodone-Acetaminophen.
Has Dr. Lars Widdel received payments from drug or device companies?
CMS Open Payments shows $147 in general payments to Dr. Widdel from 2 companies from 2016 to 2022. The largest total came from Medtronic, Inc.
How long has Dr. Lars Widdel been practicing?
Dr. Widdel graduated from medical school in 2002, 24 years ago.
Does Dr. Lars Widdel do research?
Dmand AI links 7 publications to Dr. Widdel.
Who does Dr. Lars Widdel publish with?
Dr. Widdel's most frequent co-authors are Janice Kerr, MD (1 shared paper) and Kevin O. Lillehei, MD (1 shared paper).
What insurance does Dr. Lars Widdel accept?
Dr. Widdel is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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