Dr. Michael S. Karp, MD
- Medicare services, 2024
- 1,102
- Medicare patients, 2024
- 516
- Part D claims, 2024
- 5,834
- Hospital affiliations
- 3
- Industry payments
- $217
- Practice address
- 1500 San Pablo Street, Los Angeles, CA 90033
- Practice phone
- Call (323) 442-8656
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karp'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. Michael S. Karp is an internist in Los Angeles, California
Dr. Karp practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.
Dr. Karp's NPI, 1336177229, was assigned on June 29, 2006. Dr. Karp graduated from Keck School of Medicine of USC in 1999. Dr. Karp holds California license A75098.
- NPI
- 1336177229NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759278286
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (323) 442-8656
- 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. Michael S. Karp practices at Keck Hospital of USC in Los Angeles, California
Dr. Karp's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.
- Keck Hospital of USC1500 San Pablo Street, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 442-8656
Source: Dmand AI Affiliation Data
Dr. Michael S. Karp is affiliated with 8 sites of care and 1 medical group
Dr. Karp's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dr. Karp is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Karp to 1 more hospital, 2 home health agencies, 1 group practice or clinic, 1 other site and 1 urgent care center, 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. Michael S. Karp's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karp practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Keck Hospital of USC | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael S. Karp is one of 16,751 internists in California
Internal medicine is Dr. Karp's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Karp is board certified in internal medicine by the American Board of Internal Medicine. Dr. Karp is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute kidney failure, acute skin infection, adjustment disease, aneurysm, atrial fibrillation and flutter and cardiomyopathy among the conditions Dr. Karp treats.
Internists near Dr. Karp
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. Michael S. Karp billed Medicare for 1,102 services in 2024
CMS data shows 1,102 Medicare services from Dr. Karp across 6 procedure codes in 2024, for 516 Medicare patients. Medicare paid $79,030 for them.
Dr. Karp's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8392024: 96014%
- Other services
- 2023: 892024: 14260%
Where Dr. Karp's Medicare services took place, 2024
- In an office595%
- In a facility1,04395%
Dr. Karp compared with the California median for internists, 2024
- Dr. Karp
- California median
- Medicare services
- 1,102vs 3613.1 times
- Medicare patients
- 516vs 1513.4 times
- Part D claims
- 4,976vs 42111.8 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Karp'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. Karp and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael S. Karp treated 516 Medicare patients in 2024, average age 74
CMS counts 516 Medicare patients who saw Dr. Karp in 2024. The largest group is 65 to 74, with 225 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.53, 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. Karp's median patient age at 69, with 36% women.
Dr. Karp's Medicare patients by age, 2024
Dr. Karp's Medicare patients by sex, 2024
- Women21542%
- Men30158%
Chronic conditions among Dr. Karp's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Diabetes34%
- Ischemic heart disease29%
- Cancer24%
- Anxiety23%
- Mood disorders23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karp's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women36%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael S. Karp wrote 5,834 Medicare Part D claims in 2024
In 2024, Dr. Karp wrote 5,834 Medicare Part D claims for 506 patients. 85% of them were for generic drugs. CMS names the drug for 4,976 of them, across 106 drugs with 11 or more claims each, at $605,405 in total drug cost. In 2023, CMS named 3,571 claims across 91 drugs.
Dr. Karp's Part D claims by kind of drug, 2024
- Generic4,988 claims85%
- Brand-name793 claims14%
- Other53 claims1%
Dr. Karp'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. Karp's Part D claims, 2024
- Opioids3%150 of 5,834 claims
- Antibiotics1%51 of 5,834 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: 3,5712024: 4,97639%
Drugs named by CMS: 106 in 2024, 91 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. Michael S. Karp offers telehealth to Medicare patients
Dr. Karp accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Karp as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael S. Karp received $217 in industry payments from 2018 to 2025
CMS Open Payments shows 12 general payments to Dr. Karp from 4 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 93% of the total. AstraZeneca Pharmaceuticals LP paid the most, $143.
General payments to Dr. Karp by program year, 2018 to 2025
General payments to Dr. Karp by kind, 2018 to 2025
- Food and beverage$20293%
- Education$157%
Companies that paid Dr. Karp the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael S. Karp graduated from Keck School of Medicine of USC
Dr. Karp graduated from Keck School of Medicine of USC in 1999.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Michael S. Karp accepts plans from 13 insurance carriers
Dr. Karp is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Elevance
- LA Care
- Regence Health Plans
- +5 more carriersWith a free account
Plan types Dr. Karp accepts, by number of carriers
- HMO7
- Medicare7
- PPO6
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael S. Karp'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) |
| 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. Michael S. Karp
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. Michael S. Karp's NPI number?
Dr. Michael S. Karp's NPI number is 1336177229. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael S. Karp?
Dr. Michael S. Karp is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael S. Karp practice?
Dr. Karp practices at 1500 San Pablo Street, Los Angeles, CA 90033. Dr. Karp's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dmand AI also links Dr. Karp to 1 hospital, 2 home health agencies, 1 group practice or clinic, 1 other site and 1 urgent care center.
What is Dr. Michael S. Karp's office phone number?
The practice phone on file for Dr. Karp is (323) 442-8656.
What is Dr. Michael S. Karp's medical license number?
Dr. Karp holds California license A75098.
Which hospitals is Dr. Michael S. Karp affiliated with?
Dr. Karp practices at Keck Hospital of USC in Los Angeles, California. Dr. Karp is also affiliated with Los Angeles General Medical Center. Dmand AI links Dr. Karp to 1 more hospital.
What medical group is Dr. Michael S. Karp part of?
Dr. Karp is linked to USC Care Medical Group.
Does Dr. Michael S. Karp accept Medicare?
Yes. CMS data shows Dr. Karp billed Medicare for 1,102 services in 2024, and Dr. Karp accepts Medicare assignment.
Does Dr. Michael S. Karp offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Karp as offering telehealth services.
How many Medicare patients does Dr. Michael S. Karp see?
CMS counts 516 Medicare patients who saw Dr. Karp in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Michael S. Karp board certified?
Yes. Dr. Karp is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Michael S. Karp bill to Medicare?
In 2024, Dr. Karp's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Michael S. Karp go to medical school?
Dr. Karp graduated from Keck School of Medicine of USC in 1999.
What drugs does Dr. Michael S. Karp prescribe most?
In 2024 Medicare Part D data, Dr. Karp's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Michael S. Karp received payments from drug or device companies?
CMS Open Payments shows $217 in general payments to Dr. Karp from 4 companies from 2018 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Michael S. Karp been practicing?
Dr. Karp graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Michael S. Karp accept?
Dr. Karp is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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