Dr. William E. Lofthouse, MD
- Medicare services, 2023
- 173
- Part D claims, 2024
- 38
- Industry payments
- $438
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 85 Sierra Park Road, Mammoth Lakes, CA 93546
- Practice phone
- Call (760) 934-3311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mammoth Hospital - Clinic
Rural Health Clinic - Hospital-Owned · Mammoth Lakes, California
Find Dr. Lofthouse'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. William E. Lofthouse is a psychiatrist in Mammoth Lakes, California
Dr. Lofthouse practices at Mammoth Hospital - Clinic in Mammoth Lakes, California.
Dr. Lofthouse's NPI, 1821197567, was assigned on September 21, 2006. Dr. Lofthouse graduated from Keck School of Medicine of USC in 1960. Dr. Lofthouse holds California license G8564.
- NPI
- 1821197567NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406082320
- NPI enumeration date
- September 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (760) 934-3311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 92
- Medical school graduation
- 1960
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William E. Lofthouse practices at Mammoth Hospital - Clinic in Mammoth Lakes, California
Dr. Lofthouse's primary practice is Mammoth Hospital - Clinic, at 85 Sierra Park Road, Mammoth Lakes, CA 93546. The practice phone is (760) 934-3311.
- Mammoth Hospital - Clinic85 Sierra Park Road, Mammoth Lakes, CA 93546Phone(760) 934-3311
Source: Dmand AI Affiliation Data
Dr. William E. Lofthouse is affiliated with 1 site of care and 1 medical group
Dr. Lofthouse's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California. The medical group on file is North American Mental Health Services.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William E. Lofthouse's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lofthouse practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mammoth Hospital - Clinic | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William E. Lofthouse is one of 6,803 psychiatrists in California
Psychiatry is Dr. Lofthouse's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Lofthouse is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists anxiety, bipolar disorder, depression and schizophrenia among the conditions Dr. Lofthouse treats.
Psychiatrists near Dr. Lofthouse
Counts of psychiatrists 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. William E. Lofthouse billed Medicare for 173 services in 2023
CMS data shows 173 Medicare services from Dr. Lofthouse across 2 procedure codes in 2023, all of them office visits. Medicare paid $15,090 for them. Every service was in an office.
Dr. Lofthouse's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3132023: 17345%
Dr. Lofthouse compared with the California median for psychiatrists, 2023
- Dr. Lofthouse
- California median
- Medicare services
- 173vs 11945% above
- Part D claims
- 1,285vs 1448.9 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Lofthouse's most billed Medicare procedure codes, 2023
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. Lofthouse and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William E. Lofthouse's patients have a median age of 36
Across all payers, Dmand AI patient panel data puts Dr. Lofthouse's median patient age at 36, with 34% women.
Dr. Lofthouse's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women34%
- Men66%
Source: Dmand AI Patient Panel Data
Dr. William E. Lofthouse wrote 38 Medicare Part D claims in 2024
In 2024, Dr. Lofthouse wrote 38 Medicare Part D claims for 12 patients. 92% of them were for generic drugs. They cover 36 drugs, with $295,989 in total drug cost. In 2022, CMS named 2,440 claims across 50 drugs.
Dr. Lofthouse's Part D claims by kind of drug, 2024
- Generic35 claims92%
- Brand-name and other3 claims8%
Dr. Lofthouse's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2,4402023: 1,28547%
Drugs named by CMS: 36 in 2023, 50 in 2022.
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. William E. Lofthouse offers telehealth to Medicare patients
Dr. Lofthouse accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lofthouse as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William E. Lofthouse received $438 in industry payments from 2017 to 2025
CMS Open Payments shows 12 general payments to Dr. Lofthouse from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $206.
General payments to Dr. Lofthouse by program year, 2017 to 2025
Companies that paid Dr. Lofthouse the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William E. Lofthouse graduated from Keck School of Medicine of USC
Dr. Lofthouse graduated from Keck School of Medicine of USC in 1960.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William E. Lofthouse'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 Data |
| 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 |
| 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. William E. Lofthouse
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. William E. Lofthouse's NPI number?
Dr. William E. Lofthouse's NPI number is 1821197567. It was assigned on September 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William E. Lofthouse?
Dr. William E. Lofthouse is a psychiatrist in Mammoth Lakes, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William E. Lofthouse practice?
Dr. Lofthouse practices at 85 Sierra Park Road, Mammoth Lakes, CA 93546. Dr. Lofthouse's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California.
What is Dr. William E. Lofthouse's office phone number?
The practice phone on file for Dr. Lofthouse is (760) 934-3311.
What is Dr. William E. Lofthouse's medical license number?
Dr. Lofthouse holds California license G8564.
What medical group is Dr. William E. Lofthouse part of?
Dr. Lofthouse is linked to North American Mental Health Services.
Does Dr. William E. Lofthouse accept Medicare?
Yes. CMS data shows Dr. Lofthouse billed Medicare for 173 services in 2023, and Dr. Lofthouse accepts Medicare assignment.
Does Dr. William E. Lofthouse offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lofthouse as offering telehealth services.
What services does Dr. William E. Lofthouse bill to Medicare?
In 2023, Dr. Lofthouse's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. William E. Lofthouse go to medical school?
Dr. Lofthouse graduated from Keck School of Medicine of USC in 1960.
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What drugs does Dr. William E. Lofthouse prescribe most?
In 2023 Medicare Part D data, Dr. Lofthouse's most prescribed drugs by claims were Prazosin HCl, Clonazepam and Quetiapine Fumarate.
Has Dr. William E. Lofthouse received payments from drug or device companies?
CMS Open Payments shows $438 in general payments to Dr. Lofthouse from 5 companies from 2017 to 2025. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. William E. Lofthouse been practicing?
Dr. Lofthouse graduated from medical school in 1960, 66 years ago.
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