Joshua Herbert Rassen
- Medicare services, 2024
- 32
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 549
- Industry payments
- $2,057
- Affiliated sites
- 1
- Practice address
- 347 Andrieux St, Sonoma, CA 95476
- Practice phone
- Call (707) 252-4411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Queen of the Valley Medical Center
Sonoma, California
Find Joshua Rassen'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.
Joshua Herbert Rassen is an internist in Sonoma, California
Joshua Rassen practices at Queen of the Valley Medical Center in Sonoma, California.
Joshua Rassen's NPI, 1902885510, was assigned on January 11, 2006. Joshua Rassen graduated from Washington University School of Medicine in 1973. Joshua Rassen holds California license G27677.
- NPI
- 1902885510NPI Registry (opens in a new tab)
- NPI enumeration date
- January 11, 2006
- NPI status
- Active
- Practice phone
- (707) 252-4411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Joshua Herbert Rassen practices at Queen of the Valley Medical Center in Sonoma, California
Joshua Rassen's primary practice is Queen of the Valley Medical Center, at 347 Andrieux St, Sonoma, CA 95476 in Sonoma County. The practice phone is (707) 252-4411.
- Queen of the Valley Medical Center347 Andrieux St, Sonoma, CA 95476 · Sonoma CountyPhone(707) 252-4411
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joshua Herbert Rassen is affiliated with 2 sites of care and 1 medical group
Joshua Rassen's primary practice is Queen of the Valley Medical Center in Sonoma, California. Dmand AI also links Joshua Rassen to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Joshua Herbert Rassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joshua Rassen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Queen of the Valley Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Joshua Herbert Rassen is one of 16,751 internists in California
Internal medicine is Joshua Rassen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Joshua Rassen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Joshua Rassen
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
Joshua Herbert Rassen billed Medicare for 32 services in 2024
CMS data shows 32 Medicare services from Joshua Rassen across 1 procedure code in 2024, all of them office visits, for 20 Medicare patients. Medicare paid $2,131 for them. Every service was in an office.
Joshua Rassen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 662024: 3252%
Joshua Rassen compared with the California median for internists, 2024
- Joshua Rassen
- California median
- Medicare services
- 32vs 36191% below
- Medicare patients
- 20vs 15187% below
- Part D claims
- 307vs 42127% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Joshua Rassen'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Joshua Herbert Rassen treated 20 Medicare patients in 2024, average age 77
CMS counts 20 Medicare patients who saw Joshua Rassen in 2024. The largest group is under 65, with 0 patients. 75% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joshua Rassen's median patient age at 79, with 34% women.
Joshua Rassen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Joshua Rassen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure60%
Share of Medicare patients with each condition. A patient can have several.
Joshua Rassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women34%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joshua Herbert Rassen wrote 549 Medicare Part D claims in 2024
In 2024, Joshua Rassen wrote 549 Medicare Part D claims for 71 patients. 91% of them were for generic drugs. CMS names the drug for 307 of them, across 18 drugs with 11 or more claims each, at $4,490 in total drug cost. In 2023, CMS named 198 claims across 11 drugs.
Joshua Rassen's Part D claims by kind of drug, 2024
- Generic502 claims91%
- Brand-name and other47 claims9%
Joshua Rassen'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1982024: 30755%
Drugs named by CMS: 18 in 2024, 11 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
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Joshua Herbert Rassen received $2,057 in industry payments from 2016 to 2023
CMS Open Payments shows 84 general payments to Joshua Rassen from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $430.
General payments to Joshua Rassen by program year, 2016 to 2023
Companies that paid Joshua Rassen the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Joshua Herbert Rassen graduated from Washington University School of Medicine
Joshua Rassen graduated from Washington University School of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Joshua Herbert Rassen'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 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) |
| 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 Joshua Herbert Rassen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joshua Herbert Rassen's NPI number?
Joshua Herbert Rassen's NPI number is 1902885510. It was assigned on January 11, 2006, and it is active in the NPI Registry.
What does Joshua Herbert Rassen specialize in?
Joshua Herbert Rassen is an internist in Sonoma, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Joshua Herbert Rassen practice?
Joshua Rassen practices at 347 Andrieux St, Sonoma, CA 95476. Joshua Rassen's primary practice is Queen of the Valley Medical Center in Sonoma, California. Dmand AI also links Joshua Rassen to 1 group practice or clinic and 1 medical group.
What is Joshua Herbert Rassen's office phone number?
The practice phone on file for Joshua Rassen is (707) 252-4411.
What is Joshua Herbert Rassen's medical license number?
Joshua Rassen holds California license G27677.
Does Joshua Herbert Rassen accept Medicare?
Yes. CMS data shows Joshua Rassen billed Medicare for 32 services in 2024.
How many Medicare patients does Joshua Herbert Rassen see?
CMS counts 20 Medicare patients who saw Joshua Rassen in 2024, with an average age of 77.
What services does Joshua Herbert Rassen bill to Medicare?
In 2024, Joshua Rassen's most billed Medicare services were office visit, established patient (99213).
Where did Joshua Herbert Rassen go to medical school?
Joshua Rassen graduated from Washington University School of Medicine in 1973.
What drugs does Joshua Herbert Rassen prescribe most?
In 2024 Medicare Part D data, Joshua Rassen's most prescribed drugs by claims were Atorvastatin Calcium, Alendronate Sodium and Rosuvastatin Calcium.
Has Joshua Herbert Rassen received payments from drug or device companies?
CMS Open Payments shows $2,057 in general payments to Joshua Rassen from 18 companies from 2016 to 2023. The largest total came from Amgen Inc.
How long has Joshua Herbert Rassen been practicing?
Joshua Rassen graduated from medical school in 1973, 53 years ago.
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