Lester Holstein, MD
NPI 1720088792 · Family Medicine Physician · Claremont, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lester Holstein, MD is a Family Medicine Physician provider in Claremont, CA (NPI 1720088792).
Provider details
- NPI number
- 1720088792
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G775600 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
912 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 387 | $137 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 372 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $96 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 23 | $7 |
| Administration of Influenza Virus VaccineG0008 | 20 | $35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 592 | 161 |
| Levothyroxine Sodium | 379 | 97 |
| Lisinopril | 314 | 90 |
| Amlodipine Besylate | 288 | 74 |
| Omeprazole | 258 | 63 |
| Simvastatin | 200 | 61 |
| Metformin Hcl | 189 |
Practice location
Mailing address
Additional practice locations (1)
- 3110 Chino Ave Ste 150aChino Hills, CA 91709-1295Phone: (909) 630-7940Fax: (909) 469-2108
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Lester Holstein's NPI number?
- Lester Holstein's National Provider Identifier (NPI) is 1720088792, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lester Holstein's specialty?
- Lester Holstein is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lester Holstein located?
- Lester Holstein's practice location on file with NPPES is 1601 Monte Vista Ave Ste 100, Claremont, CA 91711-6601.
- What is Lester Holstein's phone number?
- The practice phone number listed in the NPPES registry for Lester Holstein is (909) 630-7938.
- Does Lester Holstein accept Medicare?
- Lester Holstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lester Holstein's NPI active?
- Yes — Lester Holstein's NPI (1720088792) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.