Dr. Lou Nishimura, MD
- Medicare services, 2022
- 1,904
- Part D claims, 2024
- 14
- Industry payments
- $572
- Affiliated sites
- 3
- Medical groups
- 3
- Practice address
- 5342 Dudley Blvd Bldg 88, Mcclellan, CA 95652
- Practice phone
- Call (702) 341-3020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McClellan VA Clinic
VA Clinic / Health Facility · Mcclellan, California
Find Dr. Nishimura'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. Lou Nishimura is an internist in Mcclellan, California
Dr. Nishimura practices at McClellan VA Clinic in Mcclellan, California.
Dr. Nishimura's NPI, 1831207315, was assigned on August 26, 2006. Dr. Nishimura graduated from David Geffen School of Medicine at UCLA in 1980. Dr. Nishimura holds California license G46283.
- NPI
- 1831207315NPI Registry (opens in a new tab)
- NPI enumeration date
- August 26, 2006
- NPI status
- Active
- Practice phone
- (702) 341-3020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Lou Nishimura practices at McClellan VA Clinic in Mcclellan, California
Dr. Nishimura's primary practice is McClellan VA Clinic, at 5342 Dudley Blvd Bldg 88, Mcclellan, CA 95652. The practice phone is (702) 341-3020.
- McClellan VA Clinic5342 Dudley Blvd Bldg 88, Mcclellan, CA 95652Phone(702) 341-3020
Source: Dmand AI Affiliation Data
Dr. Lou Nishimura is affiliated with 3 sites of care and 3 medical groups
Dr. Nishimura's primary practice is McClellan VA Clinic in Mcclellan, California. The medical group on file is Discover Health. Dmand AI also links Dr. Nishimura to 2 more group practices and clinics and 2 medical groups, each named with a free account. Dr. Nishimura's employer is on file too: a government & correctional health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lou Nishimura's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nishimura practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McClellan VA Clinic | Available with a free account |
| +2 more sites and 2 medical groups | 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. Lou Nishimura is one of 16,751 internists in California
Internal medicine is Dr. Nishimura's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nishimura is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nishimura is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute mini-stroke (TIA), acute skin infection, bronchitis, bursitis, contact dermatitis, corns and calluses, diabetic emergency and gastrointestinal bleeding among the conditions Dr. Nishimura treats.
Internists near Dr. Nishimura
Counts of internists 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. Lou Nishimura billed Medicare for 1,904 services in 2022
CMS data shows 1,904 Medicare services from Dr. Nishimura across 16 procedure codes in 2022. Medicare paid $128,858 for them.
Dr. Nishimura's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1,4182022: 1,3525%
- Surgery
- 2021: 3502022: 20641%
- Other services
- 2021: 6182022: 19469%
- Tests and treatments
- 2021: 3372022: 11765%
- Lab and pathology
- 2021: 142022: 35150%
Where Dr. Nishimura's Medicare services took place, 2022
- In an office1,84597%
- In a facility593%
Dr. Nishimura compared with the California median for internists, 2022
- Dr. Nishimura
- California median
- Medicare services
- 1,904vs 3615.3 times
- Part D claims
- 1,417vs 4213.4 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nishimura's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nishimura?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nishimura and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lou Nishimura's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Nishimura's median patient age at 74, with 20% women.
Dr. Nishimura's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
Dr. Lou Nishimura wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Nishimura wrote 14 Medicare Part D claims. 79% of them were for generic drugs. They cover 49 drugs, with $74,556 in total drug cost. In 2022, CMS named 5,964 claims across 125 drugs.
Dr. Nishimura's Part D claims by kind of drug, 2024
- Generic11 claims79%
- Brand-name and other3 claims21%
Dr. Nishimura's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5,9642023: 1,41776%
Drugs named by CMS: 49 in 2023, 125 in 2022.
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.
Dr. Lou Nishimura received $572 in industry payments from 2016 to 2020
CMS Open Payments shows 33 general payments to Dr. Nishimura from 11 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $134.
General payments to Dr. Nishimura by program year, 2016 to 2020
Companies that paid Dr. Nishimura the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lou Nishimura has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Nishimura, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Nishimura
- 2013
- CMS Stage 1 EHR
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Lou Nishimura graduated from David Geffen School of Medicine at UCLA
Dr. Nishimura graduated from David Geffen School of Medicine at UCLA in 1980.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Lou Nishimura accepts plans from 4 insurance carriers
Dr. Nishimura is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Nishimura accepts, by number of carriers
- Medicare4
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lou Nishimura'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 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) |
| Industry payments | Open Payments (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. Lou Nishimura
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. Lou Nishimura's NPI number?
Dr. Lou Nishimura's NPI number is 1831207315. It was assigned on August 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lou Nishimura?
Dr. Lou Nishimura is an internist in Mcclellan, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lou Nishimura practice?
Dr. Nishimura practices at 5342 Dudley Blvd Bldg 88, Mcclellan, CA 95652. Dr. Nishimura's primary practice is McClellan VA Clinic in Mcclellan, California. Dmand AI also links Dr. Nishimura to 2 group practices and clinics and 2 medical groups.
What is Dr. Lou Nishimura's office phone number?
The practice phone on file for Dr. Nishimura is (702) 341-3020.
What is Dr. Lou Nishimura's medical license number?
Dr. Nishimura holds California license G46283.
What medical group is Dr. Lou Nishimura part of?
Dr. Nishimura is linked to Discover Health. Dmand AI links Dr. Nishimura to 2 more medical groups.
Does Dr. Lou Nishimura accept Medicare?
Yes. CMS data shows Dr. Nishimura billed Medicare for 1,904 services in 2022.
Is Dr. Lou Nishimura board certified?
Yes. Dr. Nishimura is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Lou Nishimura bill to Medicare?
In 2022, Dr. Nishimura's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: heart and blood vessels (36415).
Where did Dr. Lou Nishimura go to medical school?
Dr. Nishimura graduated from David Geffen School of Medicine at UCLA in 1980.
Show 4 more questionsShow fewer questions
What drugs does Dr. Lou Nishimura prescribe most?
In 2023 Medicare Part D data, Dr. Nishimura's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Escitalopram Oxalate.
Has Dr. Lou Nishimura received payments from drug or device companies?
CMS Open Payments shows $572 in general payments to Dr. Nishimura from 11 companies from 2016 to 2020. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Lou Nishimura been practicing?
Dr. Nishimura graduated from medical school in 1980, 46 years ago.
What insurance does Dr. Lou Nishimura accept?
Dr. Nishimura is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists 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