Dr. Gerald U. Lim, MD
- Medicare services, 2016
- 12
- Part D claims, 2024
- 3,935
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 2
- 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, California
Find Dr. Lim'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. Gerald U. Lim is a family medicine physician in Anaheim, California
Dr. Lim practices at Southern California Permanente Medical Group in Anaheim, California.
Dr. Lim's NPI, 1427091958, was assigned on June 13, 2006. Dr. Lim graduated from University of Santo Tomas in 1996. Dr. Lim holds California license A90080.
- NPI
- 1427091958NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638118334
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gerald U. Lim practices at Southern California Permanente Medical Group in Anaheim, California
Dr. Lim's primary practice is Southern California Permanente Medical Group, at 441 N Lakeview Ave, Anaheim, CA 92807 in Orange County. The practice phone is (714) 279-4000.
- Southern California Permanente Medical Group441 N Lakeview Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 279-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gerald U. Lim is affiliated with 2 sites of care and 1 medical group
Dr. Lim's primary practice is Southern California Permanente Medical Group in Anaheim, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Lim to 1 more group practice or clinic, 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 Dr. Gerald U. Lim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lim practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | 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. Gerald U. Lim is one of 15,680 family medicine physicians in California
Family medicine is Dr. Lim's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Lim is board certified in family medicine by the American Board of Family Medicine. Dr. Lim is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists knee injury among the conditions Dr. Lim treats.
Family medicine physicians near Dr. Lim
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. Gerald U. Lim billed Medicare for 12 services in 2016
CMS data shows 12 Medicare services from Dr. Lim across 1 procedure code in 2016, all of them office visits. Medicare paid $399 for them. Every service was in an office.
Dr. Lim compared with the California median for family medicine physicians, 2016
- Dr. Lim
- California median
- Medicare services
- 12vs 24695% below
- Part D claims
- 3,431vs 8334.1 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Lim's most billed Medicare procedure codes, 2016
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. Lim 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. Gerald U. Lim's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Lim's median patient age at 41, with 57% women.
Dr. Lim's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Gerald U. Lim wrote 3,935 Medicare Part D claims in 2024
In 2024, Dr. Lim wrote 3,935 Medicare Part D claims for 1,185 patients. 91% of them were for generic drugs. CMS names the drug for 3,431 of them, across 87 drugs with 11 or more claims each, at $135,573 in total drug cost. In 2023, CMS named 2,578 claims across 70 drugs.
Dr. Lim's Part D claims by kind of drug, 2024
- Generic3,588 claims91%
- Brand-name310 claims8%
- Other37 claims1%
Dr. Lim'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. Lim's Part D claims, 2024
- Opioids6%231 of 3,935 claims
- Antibiotics3%123 of 3,935 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: 2,5782024: 3,43133%
Drugs named by CMS: 87 in 2024, 70 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
How Dr. Gerald U. Lim takes part in Medicare
Dr. Lim 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. Gerald U. Lim has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Lim, most recently NCQA DRP in 2014.
Awards and honors for Dr. Lim
- 2014
- NCQA DRP
- NCQA HSRP
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Gerald U. Lim graduated from University of Santo Tomas
Dr. Lim graduated from University of Santo Tomas in 1996.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Gerald U. Lim accepts plans from 2 insurance carriers
Dr. Lim is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Lim accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gerald U. Lim'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Gerald U. Lim
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. Gerald U. Lim's NPI number?
Dr. Gerald U. Lim's NPI number is 1427091958. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerald U. Lim?
Dr. Gerald U. Lim is a family medicine physician in Anaheim, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Gerald U. Lim practice?
Dr. Lim practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Lim's primary practice is Southern California Permanente Medical Group in Anaheim, California. Dmand AI also links Dr. Lim to 1 group practice or clinic.
What is Dr. Gerald U. Lim's office phone number?
The practice phone on file for Dr. Lim is (714) 279-4000.
What is Dr. Gerald U. Lim's medical license number?
Dr. Lim holds California license A90080.
What medical group is Dr. Gerald U. Lim part of?
Dr. Lim is linked to Southern California Permanente Medical Group.
Does Dr. Gerald U. Lim accept Medicare?
Yes. CMS data shows Dr. Lim billed Medicare for 12 services in 2016, and Dr. Lim accepts Medicare assignment.
Is Dr. Gerald U. Lim board certified?
Yes. Dr. Lim is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Gerald U. Lim bill to Medicare?
In 2016, Dr. Lim's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Gerald U. Lim go to medical school?
Dr. Lim graduated from University of Santo Tomas in 1996.
Show 3 more questionsShow fewer questions
What drugs does Dr. Gerald U. Lim prescribe most?
In 2024 Medicare Part D data, Dr. Lim's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
How long has Dr. Gerald U. Lim been practicing?
Dr. Lim graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Gerald U. Lim accept?
Dr. Lim is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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