Dr. Mitchell M. Nishimoto, MD
- Medicare services, 2024
- 637
- Medicare patients, 2024
- 102
- Part D claims, 2024
- 2,619
- Industry payments
- $2,385
- Affiliated sites
- 2
- Practice address
- 15243 Vanowen St, Vannuys, CA 91405
- Practice phone
- Call (818) 787-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mazzocco Ambulatory Surgical Center (Vanowen St)
Surgery Center - Not Medicare-Certified · Vannuys, California
Find Dr. Nishimoto'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. Mitchell M. Nishimoto is an internist in Vannuys, California
Dr. Nishimoto practices at Mazzocco Ambulatory Surgical Center (Vanowen St) in Vannuys, California.
Dr. Nishimoto's NPI, 1003917287, was assigned on September 26, 2006. Dr. Nishimoto graduated from UC Davis School of Medicine in 1991. Dr. Nishimoto holds California license G76976.
- NPI
- 1003917287NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143288589
- NPI enumeration date
- September 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (818) 787-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mitchell M. Nishimoto practices at Mazzocco Ambulatory Surgical Center (Vanowen St) in Vannuys, California
Dr. Nishimoto's primary practice is Mazzocco Ambulatory Surgical Center (Vanowen St), at 15243 Vanowen St, Vannuys, CA 91405. The practice phone is (818) 787-2020.
- Mazzocco Ambulatory Surgical Center (Vanowen St)15243 Vanowen St, Vannuys, CA 91405Phone(818) 787-2020
Source: Dmand AI Affiliation Data
Dr. Mitchell M. Nishimoto is affiliated with 2 sites of care
Dr. Nishimoto's primary practice is Mazzocco Ambulatory Surgical Center (Vanowen St) in Vannuys, California. Dmand AI also links Dr. Nishimoto to 1 physician office, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mitchell M. Nishimoto's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nishimoto practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mazzocco Ambulatory Surgical Center (Vanowen St) | 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. Mitchell M. Nishimoto is one of 16,751 internists in California
Internal medicine is Dr. Nishimoto's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nishimoto is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, arthritis, asthma, bronchitis, bursitis and chest pain among the conditions Dr. Nishimoto treats.
Internists near Dr. Nishimoto
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. Mitchell M. Nishimoto billed Medicare for 637 services in 2024
CMS data shows 637 Medicare services from Dr. Nishimoto across 3 procedure codes in 2024, for 102 Medicare patients. Medicare paid $69,004 for them. Every service was in an office.
Dr. Nishimoto's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6042024: 6264%
- Other services
- 2023: 142024: 1121%
Dr. Nishimoto compared with the California median for internists, 2024
- Dr. Nishimoto
- California median
- Medicare services
- 637vs 36176% above
- Medicare patients
- 102vs 15132% below
- Part D claims
- 2,113vs 4215.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nishimoto'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. Nishimoto and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mitchell M. Nishimoto treated 102 Medicare patients in 2024, average age 78
CMS counts 102 Medicare patients who saw Dr. Nishimoto in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nishimoto's median patient age at 65, with 51% women.
Dr. Nishimoto's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nishimoto's Medicare patients by sex, 2024
- Women6059%
- Men4241%
Chronic conditions among Dr. Nishimoto's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes37%
- Chronic kidney disease33%
- Ischemic heart disease23%
- Mood disorders22%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nishimoto's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mitchell M. Nishimoto wrote 2,619 Medicare Part D claims in 2024
In 2024, Dr. Nishimoto wrote 2,619 Medicare Part D claims for 171 patients. 85% of them were for generic drugs. CMS names the drug for 2,113 of them, across 53 drugs with 11 or more claims each, at $164,191 in total drug cost. In 2023, CMS named 1,832 claims across 46 drugs.
Dr. Nishimoto's Part D claims by kind of drug, 2024
- Generic2,237 claims85%
- Brand-name362 claims14%
- Other20 claims1%
Dr. Nishimoto'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. Nishimoto's Part D claims, 2024
- Opioids1%35 of 2,619 claims
- Antibiotics4%97 of 2,619 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: 1,8322024: 2,11315%
Drugs named by CMS: 53 in 2024, 46 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. Mitchell M. Nishimoto offers telehealth to Medicare patients
Dr. Nishimoto accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nishimoto as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mitchell M. Nishimoto received $2,385 in industry payments from 2016 to 2025
CMS Open Payments shows 115 general payments to Dr. Nishimoto from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $426.
General payments to Dr. Nishimoto by program year, 2016 to 2025
Companies that paid Dr. Nishimoto 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. Mitchell M. Nishimoto graduated from UC Davis School of Medicine
Dr. Nishimoto graduated from UC Davis School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Mitchell M. Nishimoto accepts plans from 16 insurance carriers
Dr. Nishimoto is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, Elevance and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Nishimoto accepts, by number of carriers
- PPO9
- HMO8
- Medicare7
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Mitchell M. Nishimoto'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) |
| 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. Mitchell M. Nishimoto
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. Mitchell M. Nishimoto's NPI number?
Dr. Mitchell M. Nishimoto's NPI number is 1003917287. It was assigned on September 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitchell M. Nishimoto?
Dr. Mitchell M. Nishimoto is an internist in Vannuys, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mitchell M. Nishimoto practice?
Dr. Nishimoto practices at 15243 Vanowen St, Vannuys, CA 91405. Dr. Nishimoto's primary practice is Mazzocco Ambulatory Surgical Center (Vanowen St) in Vannuys, California. Dmand AI also links Dr. Nishimoto to 1 physician office.
What is Dr. Mitchell M. Nishimoto's office phone number?
The practice phone on file for Dr. Nishimoto is (818) 787-2020.
What is Dr. Mitchell M. Nishimoto's medical license number?
Dr. Nishimoto holds California license G76976.
Does Dr. Mitchell M. Nishimoto accept Medicare?
Yes. CMS data shows Dr. Nishimoto billed Medicare for 637 services in 2024, and Dr. Nishimoto accepts Medicare assignment.
Does Dr. Mitchell M. Nishimoto offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nishimoto as offering telehealth services.
How many Medicare patients does Dr. Mitchell M. Nishimoto see?
CMS counts 102 Medicare patients who saw Dr. Nishimoto in 2024, with an average age of 78.
What services does Dr. Mitchell M. Nishimoto bill to Medicare?
In 2024, Dr. Nishimoto's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and medicare service (G0439).
Where did Dr. Mitchell M. Nishimoto go to medical school?
Dr. Nishimoto graduated from UC Davis School of Medicine in 1991.
Show 4 more questionsShow fewer questions
What drugs does Dr. Mitchell M. Nishimoto prescribe most?
In 2024 Medicare Part D data, Dr. Nishimoto's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Dr. Mitchell M. Nishimoto received payments from drug or device companies?
CMS Open Payments shows $2,385 in general payments to Dr. Nishimoto from 22 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Mitchell M. Nishimoto been practicing?
Dr. Nishimoto graduated from medical school in 1991, 35 years ago.
What insurance does Dr. Mitchell M. Nishimoto accept?
Dr. Nishimoto is in network with 16 carriers, including Blue Cross Blue Shield of Michigan, Elevance and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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