Dr. Warren Tilden Withers, MD
- Medicare services, 2024
- 329
- Medicare patients, 2024
- 250
- Part D claims, 2024
- 135
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 2170 South Avenue, South Lake Tahoe, CA 96150
- Practice phone
- Call (530) 541-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Withers' 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. Warren Tilden Withers is an emergency medicine physician in South Lake Tahoe, California
Dr. Withers practices at Barton Memorial Hospital in South Lake Tahoe, California, part of Barton Health.
Dr. Withers' NPI, 1396743878, was assigned on July 8, 2005. Dr. Withers graduated from Creighton University School of Medicine in 1994. Dr. Withers holds Nevada license 9451.
- NPI
- 1396743878NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204737455
- NPI enumeration date
- July 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 541-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren Tilden Withers practices at Barton Memorial Hospital in South Lake Tahoe, California
Dr. Withers' primary practice is Barton Memorial Hospital, at 2170 South Avenue, South Lake Tahoe, CA 96150 in El Dorado County. The practice phone is (530) 541-3000.
- Barton Memorial Hospital2170 South Avenue, South Lake Tahoe, CA 96150 · El Dorado CountyPhone(530) 541-3000
Source: Dmand AI Affiliation Data
Dr. Warren Tilden Withers is affiliated with 4 sites of care and 4 medical groups
Dr. Withers' primary practice is Barton Memorial Hospital in South Lake Tahoe, California, part of Barton Health. The medical group on file is Barton Memorial Hospital. Dmand AI also links Dr. Withers to 3 more group practices and clinics and 3 medical groups, 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. Warren Tilden Withers' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Withers practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barton Memorial Hospital | Available with a free account |
| +3 more sites and 3 medical groups | 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 Barton Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Warren Tilden Withers is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Withers' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Withers' licenses on file in 2 states: Nevada and California.
Specialties and state licenses
- Emergency medicine, NevadaPrimary
- California license
Emergency medicine physicians near Dr. Withers
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. Warren Tilden Withers billed Medicare for 329 services in 2024
CMS data shows 329 Medicare services from Dr. Withers across 9 procedure codes in 2024, for 250 Medicare patients. Medicare paid $17,137 for them. Every service was in an office.
Dr. Withers' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 392024: 200413%
- Lab and pathology
- 2023: 02024: 91
- Imaging
- 2023: 02024: 38
Dr. Withers compared with the California median for emergency medicine physicians, 2024
- Dr. Withers
- California median
- Medicare services
- 329vs 26524% above
- Medicare patients
- 250vs 243Close to median
- Part D claims
- 51vs 6218% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Withers' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Withers and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren Tilden Withers treated 250 Medicare patients in 2024, average age 74
CMS counts 250 Medicare patients who saw Dr. Withers in 2024. The largest group is 65 to 74, with 139 patients. 72% of them have high cholesterol, and 57% have high blood pressure. 5% are also on Medicaid. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Withers' median patient age at 48, with 57% women.
Dr. Withers' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Withers' Medicare patients by sex, 2024
- Women14458%
- Men10642%
Chronic conditions among Dr. Withers' Medicare patients, 2024
- High cholesterol72%
- High blood pressure57%
- Arthritis52%
- Osteoporosis25%
- Ischemic heart disease20%
- Anxiety18%
- Atrial fibrillation15%
- Mood disorders14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Withers' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Warren Tilden Withers wrote 135 Medicare Part D claims in 2024
In 2024, Dr. Withers wrote 135 Medicare Part D claims for 101 patients. 92% of them were for generic drugs. CMS names the drug for 51 of them, across 3 drugs with 11 or more claims each, at $318 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Withers' Part D claims by kind of drug, 2024
- Generic124 claims92%
- Brand-name11 claims8%
Dr. Withers' 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. Withers' Part D claims, 2024
- Antibiotics54%73 of 135 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: 122024: 51325%
Drugs named by CMS: 3 in 2024, 1 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. Warren Tilden Withers scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Withers for performance year 2024, reported through an alternative payment model (APM). Dr. Withers accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Withers' MIPS scores, performance year 2024
- 96of 100Final score
- 89.9of 100Quality
- 94of 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. Warren Tilden Withers received $121 in industry payments from 2016 to 2017
CMS Open Payments shows 6 general payments to Dr. Withers from 6 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $32.
General payments to Dr. Withers by program year, 2016 to 2017
Companies that paid Dr. Withers the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Warren Tilden Withers graduated from Creighton University School of Medicine
Dr. Withers graduated from Creighton University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Warren Tilden Withers'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. Warren Tilden Withers
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. Warren Tilden Withers' NPI number?
Dr. Warren Tilden Withers' NPI number is 1396743878. It was assigned on July 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren Tilden Withers?
Dr. Warren Tilden Withers is an emergency medicine physician in South Lake Tahoe, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Warren Tilden Withers practice?
Dr. Withers practices at 2170 South Avenue, South Lake Tahoe, CA 96150. Dr. Withers' primary practice is Barton Memorial Hospital in South Lake Tahoe, California, part of Barton Health. Dmand AI also links Dr. Withers to 3 group practices and clinics and 3 medical groups.
What is Dr. Warren Tilden Withers' office phone number?
The practice phone on file for Dr. Withers is (530) 541-3000.
What is Dr. Warren Tilden Withers' medical license number?
Dr. Withers holds Nevada license 9451, one of the licenses on file in 2 states.
Which states has Dr. Warren Tilden Withers been licensed in?
Dmand AI has state licenses on file for Dr. Withers in Nevada and California.
Which hospitals is Dr. Warren Tilden Withers affiliated with?
Dr. Withers practices at Barton Memorial Hospital in South Lake Tahoe, California.
What medical group is Dr. Warren Tilden Withers part of?
Dr. Withers is linked to Barton Memorial Hospital. Dmand AI links Dr. Withers to 3 more medical groups.
Does Dr. Warren Tilden Withers accept Medicare?
Yes. CMS data shows Dr. Withers billed Medicare for 329 services in 2024, and Dr. Withers accepts Medicare assignment.
What is Dr. Warren Tilden Withers' MIPS score?
Dr. Withers' MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Warren Tilden Withers see?
CMS counts 250 Medicare patients who saw Dr. Withers in 2024, with an average age of 74.
What services does Dr. Warren Tilden Withers bill to Medicare?
In 2024, Dr. Withers' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and diagnostic imaging (71046).
Where did Dr. Warren Tilden Withers go to medical school?
Dr. Withers graduated from Creighton University School of Medicine in 1994.
What drugs does Dr. Warren Tilden Withers prescribe most?
In 2024 Medicare Part D data, Dr. Withers' most prescribed drugs by claims were Cephalexin, Doxycycline Hyclate and Amoxicillin.
Has Dr. Warren Tilden Withers received payments from drug or device companies?
CMS Open Payments shows $121 in general payments to Dr. Withers from 6 companies from 2016 to 2017. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Warren Tilden Withers been practicing?
Dr. Withers graduated from medical school in 1994, 32 years ago.
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