Dr. Lester Samuel Holstein III, MD
- Medicare services, 2024
- 930
- Medicare patients, 2024
- 244
- Part D claims, 2024
- 7,302
- Hospital affiliations
- 3
- Industry payments
- $788
- Practice address
- 1601 Monte Vista Ave Suite 190 Suite 190, Claremont, CA 91711-6600
- Practice phone
- Call (909) 865-9977
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pvhc At Claremont
Primary care practice · Claremont, California
Find Dr. Holstein'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. Lester Samuel Holstein III is a family medicine physician in Claremont, California
Dr. Holstein practices at Pvhc At Claremont in Claremont, California.
Dr. Holstein's NPI, 1720088792, was assigned on July 29, 2005. Dr. Holstein graduated from Loma Linda University School Of Medicine in 1992. Dr. Holstein's California license number on file is G775600.
- NPI
- 1720088792NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446163786
- NPI enumeration date
- July 29, 2005
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (909) 865-9977
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lester Samuel Holstein III practices at Pvhc at Claremont in Claremont, California
Dr. Holstein's primary practice is Pvhc at Claremont, at 1601 Monte Vista Ave Suite 190 Suite 190, Claremont, CA 91711-6600. The practice phone is (909) 865-9977.
- Pvhc at Claremont1601 Monte Vista Ave Suite 190 Suite 190, Claremont, CA 91711-6600Phone(909) 865-9977
Source: Dmand AI Affiliation Data
Dr. Lester Samuel Holstein III is affiliated with 5 sites of care and 1 medical group
Dr. Holstein's primary practice is Pvhc At Claremont in Claremont, California. Dr. Holstein is also affiliated with Pomona Valley Hospital Medical Center. The medical group on file is Premier Family Medicine Associates. Dmand AI also links Dr. Holstein to 2 more hospitals and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lester Samuel Holstein III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holstein practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pvhc At Claremont | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lester Samuel Holstein III is one of 15,680 family medicine physicians in California
Family medicine is Dr. Holstein's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Holstein is board certified in family medicine by the American Board of Family Medicine. Dr. Holstein has a license on file in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute sinusitis, acute skin infection, alzheimer's disease, aneurysm, arthritis and asthma among the conditions Dr. Holstein treats.
Family medicine physicians near Dr. Holstein
Counts of family medicine physicians 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. Lester Samuel Holstein III billed Medicare for 930 services in 2024
CMS data shows 930 Medicare services from Dr. Holstein across 7 procedure codes in 2024, for 244 Medicare patients. Medicare paid $47,397 for them. Every service was in an office.
Dr. Holstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5402024: 4978%
- Other services
- 2023: 182024: 3922078%
- Tests and treatments
- 2023: 352024: 4117%
Dr. Holstein compared with the California median for family medicine physicians, 2024
- Dr. Holstein
- California median
- Medicare services
- 930vs 2463.8 times
- Medicare patients
- 244vs 1182.1 times
- Part D claims
- 6,685vs 8338.0 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Holstein'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. Holstein and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lester Samuel Holstein III treated 244 Medicare patients in 2024, average age 75
CMS counts 244 Medicare patients who saw Dr. Holstein in 2024. The largest group is 65 to 74, with 104 patients. 74% of them have high cholesterol, and 73% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Holstein's median patient age at 59, with 49% women.
Dr. Holstein's Medicare patients by age, 2024
Dr. Holstein's Medicare patients by sex, 2024
- Women11547%
- Men12953%
Chronic conditions among Dr. Holstein's Medicare patients, 2024
- High cholesterol74%
- High blood pressure73%
- Arthritis48%
- Diabetes22%
- Ischemic heart disease22%
- Chronic kidney disease21%
- Heart failure19%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Holstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lester Samuel Holstein III wrote 7,302 Medicare Part D claims in 2024
In 2024, Dr. Holstein wrote 7,302 Medicare Part D claims for 656 patients. 90% of them were for generic drugs. CMS names the drug for 6,685 of them, across 110 drugs with 11 or more claims each, at $292,957 in total drug cost. In 2023, CMS named 7,514 claims across 122 drugs.
Dr. Holstein's Part D claims by kind of drug, 2024
- Generic6,577 claims90%
- Brand-name696 claims10%
- Other29 claims0%
Dr. Holstein'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. Holstein's Part D claims, 2024
- Opioids1%88 of 7,302 claims
- Antibiotics1%71 of 7,302 claims
- Antipsychotics, patients 65 and over1%37 of 7,302 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: 7,5142024: 6,68511%
Drugs named by CMS: 110 in 2024, 122 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. Lester Samuel Holstein III offers telehealth to Medicare patients
CMS lists Dr. Holstein as offering telehealth.
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lester Samuel Holstein III received $788 in industry payments from 2016 to 2025
CMS Open Payments shows 12 general payments to Dr. Holstein from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $324.
General payments to Dr. Holstein by program year, 2016 to 2025
Companies that paid Dr. Holstein the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lester Samuel Holstein III graduated from Loma Linda University School Of Medicine
Dr. Holstein graduated from Loma Linda University School Of Medicine in 1992.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Lester Samuel Holstein III accepts plans from 17 insurance carriers
Dr. Holstein is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- LA Care
- Blue Cross Blue Shield of Massachusetts
- Humana
- +9 more carriersWith a free account
Plan types Dr. Holstein accepts, by number of carriers
- Medicare10
- PPO10
- HMO8
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lester Samuel Holstein III'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 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)Doctors and Clinicians Utilization Data (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. Lester Samuel Holstein III
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. Lester Samuel Holstein III's NPI number?
Dr. Lester Samuel Holstein III's NPI number is 1720088792. It was assigned on July 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Lester Samuel Holstein III?
Dr. Lester Samuel Holstein III is a family medicine physician in Claremont, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Lester Samuel Holstein III practice?
Dr. Holstein practices at 1601 Monte Vista Ave Suite 190 Suite 190, Claremont, CA 91711-6600. Dr. Holstein's primary practice is Pvhc At Claremont in Claremont, California. Dmand AI also links Dr. Holstein to 2 hospitals and 1 home health agency.
What is Dr. Lester Samuel Holstein III's office phone number?
The practice phone on file for Dr. Holstein is (909) 865-9977.
What is Dr. Lester Samuel Holstein III's medical license number?
Dr. Holstein's California license number on file is G775600.
Which hospitals is Dr. Lester Samuel Holstein III affiliated with?
Dr. Holstein is affiliated with Pomona Valley Hospital Medical Center. Dmand AI links Dr. Holstein to 2 more hospitals.
What medical group is Dr. Lester Samuel Holstein III part of?
Dr. Holstein is linked to Premier Family Medicine Associates.
Does Dr. Lester Samuel Holstein III accept Medicare?
Yes. CMS data shows Dr. Holstein billed Medicare for 930 services in 2024.
Does Dr. Lester Samuel Holstein III offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Holstein as offering telehealth services.
How many Medicare patients does Dr. Lester Samuel Holstein III see?
CMS counts 244 Medicare patients who saw Dr. Holstein in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
Is Dr. Lester Samuel Holstein III board certified?
Yes. Dr. Holstein is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Lester Samuel Holstein III bill to Medicare?
In 2024, Dr. Holstein's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. Lester Samuel Holstein III go to medical school?
Dr. Holstein graduated from Loma Linda University School Of Medicine in 1992.
What drugs does Dr. Lester Samuel Holstein III prescribe most?
In 2024 Medicare Part D data, Dr. Holstein's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. Lester Samuel Holstein III received payments from drug or device companies?
CMS Open Payments shows $788 in general payments to Dr. Holstein from 6 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Lester Samuel Holstein III been practicing?
Dr. Holstein graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Lester Samuel Holstein III accept?
Dr. Holstein is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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