Dr. Adam S. Alperstein, MD
- Medicare services, 2024
- 254
- Medicare patients, 2024
- 144
- Part D claims, 2019
- 11
- Hospital affiliations
- 2
- Industry payments
- $318
- Practice address
- 31700 Temecula Pkwy, Temecula, CA 92592
- Practice phone
- Call (951) 331-2200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Alperstein's professional email, personal email and mobile number
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Dr. Adam S. Alperstein is a nephrologist in Temecula, California
Dr. Alperstein practices at Temecula Valley Hospital in Temecula, California, part of Universal Health Services.
Dr. Alperstein's NPI, 1164803300, was assigned on June 12, 2015. Dr. Alperstein holds Kentucky license 51281.
- NPI
- 1164803300NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678826583
- NPI enumeration date
- June 12, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 331-2200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Adam S. Alperstein practices at Temecula Valley Hospital in Temecula, California
Dr. Alperstein's primary practice is Temecula Valley Hospital, at 31700 Temecula Pkwy, Temecula, CA 92592 in Riverside County. The practice phone is (951) 331-2200.
- Temecula Valley Hospital31700 Temecula Pkwy, Temecula, CA 92592 · Riverside CountyPhone(951) 331-2200
Source: Dmand AI Affiliation Data
Dr. Adam S. Alperstein is affiliated with 2 sites of care and 1 medical group
Dr. Alperstein's primary practice is Temecula Valley Hospital in Temecula, California, part of Universal Health Services. Dr. Alperstein is also affiliated with Southwest Healthcare Rancho Springs Hospital. The medical group on file is Inpatient Specialist of California PC.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Adam S. Alperstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alperstein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Temecula Valley Hospital | 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. Adam S. Alperstein is one of 1,401 nephrologists in California
Nephrology is Dr. Alperstein's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Alperstein is licensed in Kentucky.
Specialties and state licenses
- Nephrology, KentuckyPrimary
Nephrologists near Dr. Alperstein
Counts of nephrologists 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. Adam S. Alperstein billed Medicare for 254 services in 2024
CMS data shows 254 Medicare services from Dr. Alperstein across 4 procedure codes in 2024, for 144 Medicare patients. Medicare paid $33,103 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Alperstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2502024: 2337%
- Surgery
- 2023: 162024: 2131%
Dr. Alperstein compared with the California median for nephrologists, 2024
- Dr. Alperstein
- California median
- Medicare services
- 254vs 1,08477% below
- Medicare patients
- 144vs 30753% below
- Part D claims
- 11vs 95599% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Alperstein'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. Alperstein and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Adam S. Alperstein treated 144 Medicare patients in 2024, average age 74
CMS counts 144 Medicare patients who saw Dr. Alperstein in 2024. The largest group is 65 to 74, with 58 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.93, 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. Alperstein's median patient age at 72, with 44% women.
Dr. Alperstein's Medicare patients by age, 2024
Dr. Alperstein's Medicare patients by sex, 2024
- Women6344%
- Men8156%
Chronic conditions among Dr. Alperstein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease69%
- Heart failure60%
- Diabetes56%
- Atrial fibrillation49%
- Chronic kidney disease49%
- Arthritis44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alperstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Adam S. Alperstein wrote 11 Medicare Part D claims in 2019
In 2019, Dr. Alperstein wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $92 in total drug cost.
Dr. Alperstein's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Adam S. Alperstein takes part in Medicare
Dr. Alperstein 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. Adam S. Alperstein received $318 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Alperstein from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 57% of the total. Mallinckrodt Enterprises LLC paid the most, $203.
General payments to Dr. Alperstein by program year, 2017 to 2025
General payments to Dr. Alperstein by kind, 2017 to 2025
- Food and beverage$18057%
- Education$13843%
Companies that paid Dr. Alperstein the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Adam S. Alperstein'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) |
| 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) |
| 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. Adam S. Alperstein
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. Adam S. Alperstein's NPI number?
Dr. Adam S. Alperstein's NPI number is 1164803300. It was assigned on June 12, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Adam S. Alperstein?
Dr. Adam S. Alperstein is a nephrologist in Temecula, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Adam S. Alperstein practice?
Dr. Alperstein practices at 31700 Temecula Pkwy, Temecula, CA 92592. Dr. Alperstein's primary practice is Temecula Valley Hospital in Temecula, California, part of Universal Health Services.
What is Dr. Adam S. Alperstein's office phone number?
The practice phone on file for Dr. Alperstein is (951) 331-2200.
What is Dr. Adam S. Alperstein's medical license number?
Dr. Alperstein holds Kentucky license 51281.
Which hospitals is Dr. Adam S. Alperstein affiliated with?
Dr. Alperstein practices at Temecula Valley Hospital in Temecula, California. Dr. Alperstein is also affiliated with Southwest Healthcare Rancho Springs Hospital.
What medical group is Dr. Adam S. Alperstein part of?
Dr. Alperstein is linked to Inpatient Specialist of California PC.
Does Dr. Adam S. Alperstein accept Medicare?
Yes. CMS data shows Dr. Alperstein billed Medicare for 254 services in 2024, and Dr. Alperstein accepts Medicare assignment.
How many Medicare patients does Dr. Adam S. Alperstein see?
CMS counts 144 Medicare patients who saw Dr. Alperstein in 2024, with an average age of 74.
What services does Dr. Adam S. Alperstein bill to Medicare?
In 2024, Dr. Alperstein's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99233).
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What drugs does Dr. Adam S. Alperstein prescribe most?
In 2019 Medicare Part D data, Dr. Alperstein's most prescribed drugs by claims were Allopurinol.
Has Dr. Adam S. Alperstein received payments from drug or device companies?
CMS Open Payments shows $318 in general payments to Dr. Alperstein from 5 companies from 2017 to 2025. The largest total came from Mallinckrodt Enterprises LLC.
How long has Dr. Adam S. Alperstein been practicing?
Dr. Alperstein graduated from medical school in 2014, 12 years ago.
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