Dr. Randy R. Lehmer, MD
- Part D claims, 2024
- 34
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 441 N Lakeview Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave)
Multi-specialty group site · Anaheim, California
Find Dr. Lehmer'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. Randy R. Lehmer is a rheumatologist in Anaheim, California
Dr. Lehmer practices at Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California.
Dr. Lehmer's NPI, 1770654683, was assigned on November 13, 2006. Dr. Lehmer holds California license G51225.
- NPI
- 1770654683NPI Registry (opens in a new tab)
- NPI enumeration date
- November 13, 2006
- NPI status
- Active
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Randy R. Lehmer practices at 2 locations in Anaheim, California
Dr. Lehmer's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave), at 441 N Lakeview Ave, Anaheim, CA 92807. The practice phone is (714) 279-4000. The NPI Registry lists Dr. Lehmer's practice address as 3440 E La Palma Ave, Anaheim, CA 92806.
- Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave)Primary441 N Lakeview Ave, Anaheim, CA 92807Phone(714) 279-4000
- NPI Registry address3440 E La Palma Ave, Anaheim, CA 92806 · Orange CountyPhone(888) 988-2800
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Randy R. Lehmer is affiliated with 1 site of care and 1 medical group
Dr. Lehmer's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Randy R. Lehmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lehmer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Randy R. Lehmer is one of 821 rheumatologists in California
Rheumatology is Dr. Lehmer's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Lehmer is licensed in California.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
Rheumatologists near Dr. Lehmer
Counts of rheumatologists 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. Randy R. Lehmer's patients have a median age of 28
Across all payers, Dmand AI patient panel data puts Dr. Lehmer's median patient age at 28, with 50% women.
Dr. Lehmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 28
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Randy R. Lehmer wrote 34 Medicare Part D claims in 2024
In 2024, Dr. Lehmer wrote 34 Medicare Part D claims for 34 patients. 76% of them were for generic drugs. They cover 3 drugs, with $1,433 in total drug cost. In 2021, CMS named 26 claims across 2 drugs.
Dr. Lehmer's Part D claims by kind of drug, 2024
- Generic26 claims76%
- Brand-name and other8 claims24%
Dr. Lehmer's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 262022: 5196%
Drugs named by CMS: 3 in 2022, 2 in 2021.
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Randy R. Lehmer'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| 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. Randy R. Lehmer
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. Randy R. Lehmer's NPI number?
Dr. Randy R. Lehmer's NPI number is 1770654683. It was assigned on November 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Randy R. Lehmer?
Dr. Randy R. Lehmer is a rheumatologist in Anaheim, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Randy R. Lehmer practice?
Dr. Lehmer practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Lehmer also practices at 3440 E La Palma Ave, Anaheim, CA 92806. Dr. Lehmer's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California.
What is Dr. Randy R. Lehmer's office phone number?
The practice phone on file for Dr. Lehmer is (714) 279-4000.
What is Dr. Randy R. Lehmer's medical license number?
Dr. Lehmer holds California license G51225.
What medical group is Dr. Randy R. Lehmer part of?
Dr. Lehmer is linked to Southern California Permanente Medical Group.
What drugs does Dr. Randy R. Lehmer prescribe most?
In 2022 Medicare Part D data, Dr. Lehmer's most prescribed drugs by claims were Methotrexate, Prednisone and Hydroxychloroquine Sulfate.
How long has Dr. Randy R. Lehmer been practicing?
Dr. Lehmer's NPI was assigned in 2006.
Selling to rheumatology practices?
See rheumatologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card