Dr. Michael J. Muellner, MD
- Medicare services, 2024
- 40
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 387
- Hospital affiliations
- 1
- Industry payments
- $2,429
- Practice address
- 4867 Sunset Blvd, Los Angeles, CA 90027
- Practice phone
- Call (323) 783-4011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Muellner'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 J. Muellner is an internist in Los Angeles, California
Dr. Muellner practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Muellner's NPI, 1073959094, was assigned on May 16, 2013. Dr. Muellner graduated from Loma Linda University School Of Medicine in 2013. Dr. Muellner holds California license A136445.
- NPI
- 1073959094NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527360601
- NPI enumeration date
- May 16, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 783-4011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Muellner practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California
Dr. Muellner's primary practice is Kaiser Permanente Los Angeles Medical Center, at 4867 Sunset Blvd, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (323) 783-4011.
- Kaiser Permanente Los Angeles Medical Center4867 Sunset Blvd, Los Angeles, CA 90027 · Los Angeles CountyPhone(323) 783-4011
Source: Dmand AI Affiliation Data
Dr. Michael J. Muellner is affiliated with 2 sites of care and 1 medical group
Dr. Muellner's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Muellner to 1 more group practice or clinic, 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 J. Muellner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Muellner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Los Angeles Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Muellner is one of 16,751 internists in California
Internal medicine is Dr. Muellner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Muellner is board certified in internal medicine by the American Board of Internal Medicine. Dr. Muellner is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure among the conditions Dr. Muellner treats.
Internists near Dr. Muellner
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 J. Muellner billed Medicare for 40 services in 2024
CMS data shows 40 Medicare services from Dr. Muellner across 1 procedure code in 2024, for 14 Medicare patients. Medicare paid $3,787 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Muellner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 392024: 403%
Dr. Muellner compared with the California median for internists, 2024
- Dr. Muellner
- California median
- Medicare services
- 40vs 36189% below
- Medicare patients
- 14vs 15191% below
- Part D claims
- 141vs 42167% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Muellner'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. Muellner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Muellner and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Muellner treated 14 Medicare patients in 2024, average age 70
CMS counts 14 Medicare patients who saw Dr. Muellner in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 5.83, 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. Muellner's median patient age at 74, with 42% women.
Chronic conditions among Dr. Muellner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Muellner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Muellner wrote 387 Medicare Part D claims in 2024
In 2024, Dr. Muellner wrote 387 Medicare Part D claims for 112 patients. 82% of them were for generic drugs. CMS names the drug for 141 of them, across 6 drugs with 11 or more claims each, at $1,930 in total drug cost. In 2023, CMS named 114 claims across 6 drugs.
Dr. Muellner's Part D claims by kind of drug, 2024
- Generic319 claims82%
- Brand-name54 claims14%
- Other14 claims4%
Dr. Muellner'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. Muellner's Part D claims, 2024
- Antibiotics8%30 of 387 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: 1142024: 14124%
Drugs named by CMS: 6 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
How Dr. Michael J. Muellner takes part in Medicare
Dr. Muellner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael J. Muellner received $2,429 in industry payments from 2021 to 2022
CMS Open Payments shows 3 general payments to Dr. Muellner from 1 drug or device company from 2021 to 2022. Speaker and faculty fees make up the largest share, 41% of the total. Eko Devices, Inc. paid the most, $2,429.
General payments to Dr. Muellner by program year, 2021 to 2022
General payments to Dr. Muellner by kind, 2021 to 2022
- Speaker and faculty fees$1,00041%
- Compensation for serving as faculty or as a speaker for a medical education program$1,00041%
- Device or supply loans$42918%
Companies that paid Dr. Muellner the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Muellner graduated from Loma Linda University School Of Medicine
Dr. Muellner graduated from Loma Linda University School Of Medicine in 2013. Dr. Muellner is a member of NAPNAP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Michael J. Muellner accepts plans from 2 insurance carriers
Dr. Muellner is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Muellner accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael J. Muellner'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 J. Muellner
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 J. Muellner's NPI number?
Dr. Michael J. Muellner's NPI number is 1073959094. It was assigned on May 16, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Muellner?
Dr. Michael J. Muellner 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 J. Muellner practice?
Dr. Muellner practices at 4867 Sunset Blvd, Los Angeles, CA 90027. Dr. Muellner's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dmand AI also links Dr. Muellner to 1 group practice or clinic.
What is Dr. Michael J. Muellner's office phone number?
The practice phone on file for Dr. Muellner is (323) 783-4011.
What is Dr. Michael J. Muellner's medical license number?
Dr. Muellner holds California license A136445.
Which hospitals is Dr. Michael J. Muellner affiliated with?
Dr. Muellner practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California.
What medical group is Dr. Michael J. Muellner part of?
Dr. Muellner is linked to Southern California Permanente Medical Group.
Does Dr. Michael J. Muellner accept Medicare?
Yes. CMS data shows Dr. Muellner billed Medicare for 40 services in 2024, and Dr. Muellner accepts Medicare assignment.
How many Medicare patients does Dr. Michael J. Muellner see?
CMS counts 14 Medicare patients who saw Dr. Muellner in 2024, with an average age of 70.
Is Dr. Michael J. Muellner board certified?
Yes. Dr. Muellner is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Michael J. Muellner bill to Medicare?
In 2024, Dr. Muellner's most billed Medicare services were hospital inpatient care (99233).
Where did Dr. Michael J. Muellner go to medical school?
Dr. Muellner graduated from Loma Linda University School Of Medicine in 2013.
What drugs does Dr. Michael J. Muellner prescribe most?
In 2024 Medicare Part D data, Dr. Muellner's most prescribed drugs by claims were Atorvastatin Calcium, Clopidogrel and Carvedilol.
Has Dr. Michael J. Muellner received payments from drug or device companies?
CMS Open Payments shows $2,429 in general payments to Dr. Muellner from 1 company from 2021 to 2022. The largest total came from Eko Devices, Inc.
How long has Dr. Michael J. Muellner been practicing?
Dr. Muellner graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Michael J. Muellner accept?
Dr. Muellner is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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