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Dr. Peter W. Demuth, MD
NPI1831622034PAC ID5193147726
- Medicare services, 2024
- 336
- Medicare patients, 2024
- 189
- Part D claims, 2024
- 7,446
- Publications
- 3
- MIPS score, 2024
- 89
- Practice address
- 245 E Redlands Blvd, San Bernardino, CA 92408
- Practice phone
- Call (909) 558-3111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lluhc
San Bernardino, California
Find Dr. Demuth'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. Peter W. Demuth is an internist in San Bernardino, California
Dr. Demuth practices at Lluhc in San Bernardino, California.
Dr. Demuth's NPI, 1831622034, was assigned on April 5, 2017. Dr. Demuth graduated from Penn State College of Medicine in 2017. Dr. Demuth holds California license A159319.
NPI and contact details
- NPI
- 1831622034NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193147726
- NPI enumeration date
- April 5, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-3111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter W. Demuth practices at Lluhc in San Bernardino, California
Dr. Demuth's primary practice is Lluhc, at 245 E Redlands Blvd, San Bernardino, CA 92408 in San Bernardino County. The practice phone is (909) 558-3111.
- Lluhc245 E Redlands Blvd, San Bernardino, CA 92408 · San Bernardino CountyPhone(909) 558-3111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter W. Demuth is affiliated with 2 sites of care and 3 medical groups
Dr. Demuth's primary practice is Lluhc in San Bernardino, California. Dr. Demuth is also affiliated with Loma Linda University Medical Center. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Demuth to 2 more medical groups, each named with a free account.
LluhcPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter W. Demuth's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Demuth practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lluhc | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter W. Demuth is one of 16,751 internists in California
Internal medicine is Dr. Demuth's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Demuth is board certified in internal medicine by the American Board of Internal Medicine. Dr. Demuth is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute kidney failure, acute mini-stroke (TIA), acute sinusitis, acute skin infection, alzheimer's disease, aneurysm and anxiety among the conditions Dr. Demuth treats.
Internists near Dr. Demuth
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. Peter W. Demuth billed Medicare for 336 services in 2024
CMS data shows 336 Medicare services from Dr. Demuth across 5 procedure codes in 2024, for 189 Medicare patients. Medicare paid $33,418 for them.
Medicare services, 2024336
Medicare patients189
Paid by Medicare$33,418
Procedure codes5
Dr. Demuth's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7312024: 32356%
- Other services
- 2023: 712024: 1382%
- Tests and treatments
- 2023: 322024: 0100%
Where Dr. Demuth's Medicare services took place, 2024
- In an office21263%
- In a facility12437%
Dr. Demuth compared with the California median for internists, 2024
- Dr. Demuth
- California median
- Medicare services
- 336vs 3617% below
- Medicare patients
- 189vs 15125% above
- Part D claims
- 6,581vs 42115.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Demuth'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. Demuth?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Demuth and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter W. Demuth treated 189 Medicare patients in 2024, average age 72
CMS counts 189 Medicare patients who saw Dr. Demuth in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.62, 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. Demuth's median patient age at 69, with 58% women.
Medicare patients, 2024189
Average age72
Average risk score2.62
Also on Medicaid44%
Dr. Demuth's Medicare patients by age, 2024
Dr. Demuth's Medicare patients by sex, 2024
- Women11058%
- Men7942%
Chronic conditions among Dr. Demuth's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Diabetes47%
- Chronic kidney disease38%
- Heart failure35%
- Ischemic heart disease35%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Demuth'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
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter W. Demuth wrote 7,446 Medicare Part D claims in 2024
In 2024, Dr. Demuth wrote 7,446 Medicare Part D claims for 831 patients. 84% of them were for generic drugs. CMS names the drug for 6,581 of them, across 134 drugs with 11 or more claims each, at $736,196 in total drug cost. In 2023, CMS named 5,260 claims across 112 drugs.
Part D claims, 20247,446
Drugs named by CMS134
Total drug cost$736,196
Part D patients831
Dr. Demuth's Part D claims by kind of drug, 2024
- Generic6,288 claims84%
- Brand-name1,095 claims15%
- Other63 claims1%
Dr. Demuth'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. Demuth's Part D claims, 2024
- Opioids2%151 of 7,446 claims
- Antibiotics1%96 of 7,446 claims
- Antipsychotics, patients 65 and over0%34 of 7,446 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: 5,2602024: 6,58125%
Drugs named by CMS: 134 in 2024, 112 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. Peter W. Demuth scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Demuth for performance year 2024, reported as part of a group. Dr. Demuth accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Demuth's MIPS scores, performance year 2024
- 89of 100Final score
- 72.1of 100Quality
- 80of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 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. Peter W. Demuth has 3 publications on record
Dmand AI links 3 papers to Dr. Demuth in 2013. Dr. Demuth's most frequent co-authors are David Craft, MD, Kofi Clarke, MD and Matthew D. Coates, MD, PhD.
Papers3
Dr. Demuth's most frequent co-authors
Recent publications by Dr. Demuth
Inflamm Bowel Dis
Anxiety DisordersDepressive DisorderInflammatory Bowel Diseases
See who Dr. Demuth researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Demuth works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter W. Demuth graduated from Penn State College of Medicine
Dr. Demuth graduated from Penn State College of Medicine in 2017.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Peter W. Demuth accepts plans from 15 insurance carriers
Dr. Demuth is in network with 15 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
- Molina
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Demuth accepts, by number of carriers
- PPO9
- Medicare8
- HMO7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter W. Demuth'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Peter W. Demuth
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. Peter W. Demuth's NPI number?
Dr. Peter W. Demuth's NPI number is 1831622034. It was assigned on April 5, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter W. Demuth?
Dr. Peter W. Demuth is an internist in San Bernardino, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Peter W. Demuth practice?
Dr. Demuth practices at 245 E Redlands Blvd, San Bernardino, CA 92408. Dr. Demuth's primary practice is Lluhc in San Bernardino, California. Dmand AI also links Dr. Demuth to 2 medical groups.
What is Dr. Peter W. Demuth's office phone number?
The practice phone on file for Dr. Demuth is (909) 558-3111.
What is Dr. Peter W. Demuth's medical license number?
Dr. Demuth holds California license A159319.
Which hospitals is Dr. Peter W. Demuth affiliated with?
Dr. Demuth is affiliated with Loma Linda University Medical Center.
What medical group is Dr. Peter W. Demuth part of?
Dr. Demuth is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Dr. Demuth to 2 more medical groups.
Does Dr. Peter W. Demuth accept Medicare?
Yes. CMS data shows Dr. Demuth billed Medicare for 336 services in 2024, and Dr. Demuth accepts Medicare assignment.
What is Dr. Peter W. Demuth's MIPS score?
Dr. Demuth's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Peter W. Demuth see?
CMS counts 189 Medicare patients who saw Dr. Demuth in 2024, with an average age of 72.
Show 8 more questionsShow fewer questions
Is Dr. Peter W. Demuth board certified?
Yes. Dr. Demuth is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Peter W. Demuth bill to Medicare?
In 2024, Dr. Demuth's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and office visit, established patient (99214).
Where did Dr. Peter W. Demuth go to medical school?
Dr. Demuth graduated from Penn State College of Medicine in 2017.
What drugs does Dr. Peter W. Demuth prescribe most?
In 2024 Medicare Part D data, Dr. Demuth's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Levothyroxine Sodium.
How long has Dr. Peter W. Demuth been practicing?
Dr. Demuth graduated from medical school in 2017, 9 years ago.
Does Dr. Peter W. Demuth do research?
Dmand AI links 3 publications to Dr. Demuth.
Who does Dr. Peter W. Demuth publish with?
Dr. Demuth's most frequent co-authors are David Craft, MD (2 shared papers), Kofi Clarke, MD (1 shared paper) and Matthew D. Coates, MD, PhD (1 shared paper).
What insurance does Dr. Peter W. Demuth accept?
Dr. Demuth is in network with 15 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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