Dr. Karl D. Wittnebel, MD
- Medicare services, 2024
- 249
- Medicare patients, 2024
- 62
- Part D claims, 2024
- 324
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Practice address
- 8700 Beverly Blvd, Los Angeles, CA 90048
- Practice phone
- Call (310) 423-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wittnebel'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. Karl D. Wittnebel is an internist in West Hollywood, California
Dr. Wittnebel practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.
Dr. Wittnebel's NPI, 1649263591, was assigned on August 25, 2005. Dr. Wittnebel graduated from Sanford School of Medicine in 1999. Dr. Wittnebel holds California license C52959.
- NPI
- 1649263591NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941236491
- NPI enumeration date
- August 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 423-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karl D. Wittnebel practices at Cedars-Sinai Medical Center in Los Angeles, California
Dr. Wittnebel's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.
- Cedars-Sinai Medical Center8700 Beverly Blvd, Los Angeles, CA 90048 · Los Angeles CountyPhone(310) 423-5000
Source: Dmand AI Affiliation Data
Dr. Karl D. Wittnebel is affiliated with 1 site of care and 1 medical group
Dr. Wittnebel's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. The medical group on file is Cedars-Sinai Medical Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karl D. Wittnebel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wittnebel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Karl D. Wittnebel is one of 16,751 internists in California
Internal medicine is Dr. Wittnebel's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Wittnebel is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Wittnebel's licenses on file in 3 states: California, Virginia and Maryland.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Virginia license
- Maryland license
Clinical focus
Dmand AI lists anxiety, drug use disorders, fibromyalgia and chronic pain, joint pain, lower back pain, mobility impairment, scoliosis and spinal stenosis among the conditions Dr. Wittnebel treats.
Internists near Dr. Wittnebel
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. Karl D. Wittnebel billed Medicare for 249 services in 2024
CMS data shows 249 Medicare services from Dr. Wittnebel across 4 procedure codes in 2024, for 62 Medicare patients. Medicare paid $23,578 for them.
Dr. Wittnebel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2472024: 2491%
Where Dr. Wittnebel's Medicare services took place, 2024
- In an office20080%
- In a facility4920%
Dr. Wittnebel compared with the California median for internists, 2024
- Dr. Wittnebel
- California median
- Medicare services
- 249vs 36131% below
- Medicare patients
- 62vs 15159% below
- Part D claims
- 256vs 42139% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Wittnebel'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wittnebel and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karl D. Wittnebel treated 62 Medicare patients in 2024, average age 68
CMS counts 62 Medicare patients who saw Dr. Wittnebel in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have arthritis, and 75% have high blood pressure. 45% are also on Medicaid. Their average risk score is 2.29, 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. Wittnebel's median patient age at 61, with 50% women.
Dr. Wittnebel's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Wittnebel's Medicare patients by sex, 2024
- Women4268%
- Men2032%
Chronic conditions among Dr. Wittnebel's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Alcohol and drug use disorders69%
- Mood disorders63%
- Anxiety61%
- Depression56%
- Ischemic heart disease47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wittnebel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karl D. Wittnebel wrote 324 Medicare Part D claims in 2024
In 2024, Dr. Wittnebel wrote 324 Medicare Part D claims for 36 patients. 98% of them were for generic drugs. CMS names the drug for 256 of them, across 7 drugs with 11 or more claims each, at $16,017 in total drug cost. In 2023, CMS named 245 claims across 6 drugs.
Dr. Wittnebel's Part D claims by kind of drug, 2024
- Generic316 claims98%
- Brand-name and other8 claims2%
Dr. Wittnebel'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. Wittnebel's Part D claims, 2024
- Opioids37%120 of 324 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: 2452024: 2564%
Drugs named by CMS: 7 in 2024, 6 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. Karl D. Wittnebel scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Wittnebel for performance year 2024, reported as part of a group. Dr. Wittnebel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Wittnebel as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Wittnebel's MIPS scores, performance year 2024
- 93of 100Final score
- 77.8of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 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
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Dr. Karl D. Wittnebel received $262 in industry payments from 2017 to 2023
CMS Open Payments shows 3 general payments to Dr. Wittnebel from 2 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $150.
General payments to Dr. Wittnebel by program year, 2017 to 2023
Companies that paid Dr. Wittnebel the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karl D. Wittnebel graduated from Sanford School of Medicine
Dr. Wittnebel graduated from Sanford School of Medicine in 1999.
- Medical school
- Board certified in internal medicine
- Board certified in addiction medicine
Source: Dmand AI Professional Profile Data
Dr. Karl D. Wittnebel accepts plans from 13 insurance carriers
Dr. Wittnebel is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Wittnebel accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Karl D. Wittnebel'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 |
| 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. Karl D. Wittnebel
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. Karl D. Wittnebel's NPI number?
Dr. Karl D. Wittnebel's NPI number is 1649263591. It was assigned on August 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Karl D. Wittnebel?
Dr. Karl D. Wittnebel is an internist in West Hollywood, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Karl D. Wittnebel practice?
Dr. Wittnebel practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Wittnebel's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.
What is Dr. Karl D. Wittnebel's office phone number?
The practice phone on file for Dr. Wittnebel is (310) 423-5000.
What is Dr. Karl D. Wittnebel's medical license number?
Dr. Wittnebel holds California license C52959, one of the licenses on file in 3 states.
Which states has Dr. Karl D. Wittnebel been licensed in?
Dmand AI has state licenses on file for Dr. Wittnebel in California (2007 to 2027), Virginia (1999 to 2010) and Maryland (2004 to 2007).
Which hospitals is Dr. Karl D. Wittnebel affiliated with?
Dr. Wittnebel practices at Cedars-Sinai Medical Center in Los Angeles, California.
What medical group is Dr. Karl D. Wittnebel part of?
Dr. Wittnebel is linked to Cedars-Sinai Medical Center.
Does Dr. Karl D. Wittnebel accept Medicare?
Yes. CMS data shows Dr. Wittnebel billed Medicare for 249 services in 2024, and Dr. Wittnebel accepts Medicare assignment.
Does Dr. Karl D. Wittnebel offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Wittnebel as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Karl D. Wittnebel's MIPS score?
Dr. Wittnebel's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Karl D. Wittnebel see?
CMS counts 62 Medicare patients who saw Dr. Wittnebel in 2024, with an average age of 68.
Is Dr. Karl D. Wittnebel board certified?
Yes. Dr. Wittnebel is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Karl D. Wittnebel bill to Medicare?
In 2024, Dr. Wittnebel's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and office visit, established patient (99215).
Where did Dr. Karl D. Wittnebel go to medical school?
Dr. Wittnebel graduated from Sanford School of Medicine in 1999.
What drugs does Dr. Karl D. Wittnebel prescribe most?
In 2024 Medicare Part D data, Dr. Wittnebel's most prescribed drugs by claims were Buprenorphine-Naloxone, Oxycodone-Acetaminophen and Buprenorphine HCl.
Has Dr. Karl D. Wittnebel received payments from drug or device companies?
CMS Open Payments shows $262 in general payments to Dr. Wittnebel from 2 companies from 2017 to 2023. The largest total came from Mallinckrodt LLC.
How long has Dr. Karl D. Wittnebel been practicing?
Dr. Wittnebel graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Karl D. Wittnebel accept?
Dr. Wittnebel is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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