Dr. Michael Michio Maruyama, MD
- Medicare services, 2024
- 362
- Medicare patients, 2024
- 157
- Part D claims, 2024
- 206
- MIPS score, 2024
- 92
- Hospital affiliations
- 2
- Practice address
- 789 N Medical Center E Dr, Clovis, CA 93611
- Practice phone
- Call (559) 324-4952
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Health Partners
Clovis, California
Find Dr. Maruyama'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. Michael Michio Maruyama is a general surgeon in Clovis, California
Dr. Maruyama practices at Community Health Partners in Clovis, California.
Dr. Maruyama's NPI, 1649354408, was assigned on October 25, 2006. Dr. Maruyama graduated from Keck School of Medicine of USC in 1975. Dr. Maruyama holds California license G32834.
- NPI
- 1649354408NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759371628
- NPI enumeration date
- October 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 324-4952
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Michio Maruyama practices at Community Health Partners in Clovis, California
Dr. Maruyama's primary practice is Community Health Partners, at 789 N Medical Center E Dr, Clovis, CA 93611 in Fresno County. The practice phone is (559) 324-4952.
- Community Health Partners789 N Medical Center E Dr, Clovis, CA 93611 · Fresno CountyPhone(559) 324-4952
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Michio Maruyama is affiliated with 5 sites of care and 2 medical groups
Dr. Maruyama's primary practice is Community Health Partners in Clovis, California. Dr. Maruyama is also affiliated with Clovis Community Medical Center. The medical group on file is Community Health Partners. Dmand AI also links Dr. Maruyama to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Michio Maruyama's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maruyama practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Health Partners | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Michio Maruyama is one of 2,926 general surgeons in California
Surgery is Dr. Maruyama's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Maruyama is board certified in surgery by the American Board of Surgery. Dr. Maruyama is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, gallbladder removal and groin hernia surgery among the conditions Dr. Maruyama treats.
General surgeons near Dr. Maruyama
Counts of general surgeons 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. Michael Michio Maruyama billed Medicare for 362 services in 2024
CMS data shows 362 Medicare services from Dr. Maruyama across 7 procedure codes in 2024, for 157 Medicare patients. Medicare paid $74,078 for them.
Dr. Maruyama's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2942024: 25812%
- Surgery
- 2023: 1072024: 1043%
Where Dr. Maruyama's Medicare services took place, 2024
- In an office25871%
- In a facility10429%
Dr. Maruyama compared with the California median for general surgeons, 2024
- Dr. Maruyama
- California median
- Medicare services
- 362vs 1662.2 times
- Medicare patients
- 157vs 12130% above
- Part D claims
- 185vs 345.4 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Maruyama'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.
Need commercial claims for Dr. Maruyama?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maruyama and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Michio Maruyama treated 157 Medicare patients in 2024, average age 74
CMS counts 157 Medicare patients who saw Dr. Maruyama in 2024. The largest group is 65 to 74, with 77 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maruyama's median patient age at 62, with 44% women.
Dr. Maruyama's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maruyama's Medicare patients by sex, 2024
- Women6139%
- Men9661%
Chronic conditions among Dr. Maruyama's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Ischemic heart disease34%
- Diabetes27%
- Cancer22%
- Chronic kidney disease22%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maruyama's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Michio Maruyama wrote 206 Medicare Part D claims in 2024
In 2024, Dr. Maruyama wrote 206 Medicare Part D claims for 95 patients. 100% of them were for generic drugs. CMS names the drug for 185 of them, across 3 drugs with 11 or more claims each, at $492 in total drug cost. In 2023, CMS named 211 claims across 4 drugs.
Dr. Maruyama's Part D claims by kind of drug, 2024
- Generic205 claims100%
- Brand-name and other1 claims0%
Dr. Maruyama'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. Maruyama's Part D claims, 2024
- Opioids46%94 of 206 claims
- Antibiotics51%105 of 206 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: 2112024: 18512%
Drugs named by CMS: 3 in 2024, 4 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. Michael Michio Maruyama scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Maruyama for performance year 2024, reported as part of a group. Dr. Maruyama accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 29 procedures of hernia repair - groin (open) by Dr. Maruyama, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Maruyama's MIPS scores, performance year 2024
- 92of 100Final score
- 78.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Maruyama ranks in Medicare procedure volume
- Hernia repair - groin (open)
- 98th percentile29 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael Michio Maruyama received $1,712 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Maruyama from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 79% of the total. Intuitive Surgical, Inc. paid the most, $1,567.
General payments to Dr. Maruyama by program year, 2016 to 2025
General payments to Dr. Maruyama by kind, 2016 to 2025
- Travel and lodging$1,34979%
- Food and beverage$36321%
Companies that paid Dr. Maruyama 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. Michael Michio Maruyama has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Maruyama, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Maruyama
- 2013
- CMS Stage 1 EHR
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Michael Michio Maruyama graduated from Keck School of Medicine of USC
Dr. Maruyama graduated from Keck School of Medicine of USC in 1975. Dr. Maruyama is a member of ACS and American Hernia Society.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Michael Michio Maruyama accepts plans from 15 insurance carriers
Dr. Maruyama is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Maruyama accepts, by number of carriers
- PPO9
- HMO7
- Medicare7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael Michio Maruyama'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 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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Michael Michio Maruyama
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. Michael Michio Maruyama's NPI number?
Dr. Michael Michio Maruyama's NPI number is 1649354408. It was assigned on October 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Michio Maruyama?
Dr. Michael Michio Maruyama is a general surgeon in Clovis, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael Michio Maruyama practice?
Dr. Maruyama practices at 789 N Medical Center E Dr, Clovis, CA 93611. Dr. Maruyama's primary practice is Community Health Partners in Clovis, California. Dmand AI also links Dr. Maruyama to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Michael Michio Maruyama's office phone number?
The practice phone on file for Dr. Maruyama is (559) 324-4952.
What is Dr. Michael Michio Maruyama's medical license number?
Dr. Maruyama holds California license G32834.
Which hospitals is Dr. Michael Michio Maruyama affiliated with?
Dr. Maruyama is affiliated with Clovis Community Medical Center. Dmand AI links Dr. Maruyama to 1 more hospital.
What medical group is Dr. Michael Michio Maruyama part of?
Dr. Maruyama is linked to Community Health Partners. Dmand AI links Dr. Maruyama to 1 more medical group.
Does Dr. Michael Michio Maruyama accept Medicare?
Yes. CMS data shows Dr. Maruyama billed Medicare for 362 services in 2024, and Dr. Maruyama accepts Medicare assignment.
What is Dr. Michael Michio Maruyama's MIPS score?
Dr. Maruyama's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael Michio Maruyama see?
CMS counts 157 Medicare patients who saw Dr. Maruyama in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Michael Michio Maruyama board certified?
Yes. Dr. Maruyama is board certified in surgery by the American Board of Surgery.
What services does Dr. Michael Michio Maruyama bill to Medicare?
In 2024, Dr. Maruyama's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99212) and office visit, established patient (99213).
Where did Dr. Michael Michio Maruyama go to medical school?
Dr. Maruyama graduated from Keck School of Medicine of USC in 1975.
What drugs does Dr. Michael Michio Maruyama prescribe most?
In 2024 Medicare Part D data, Dr. Maruyama's most prescribed drugs by claims were Tramadol HCl, Amoxicillin-Clavulanate Potass and Ciprofloxacin HCl.
Has Dr. Michael Michio Maruyama received payments from drug or device companies?
CMS Open Payments shows $1,712 in general payments to Dr. Maruyama from 6 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael Michio Maruyama been practicing?
Dr. Maruyama graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Michael Michio Maruyama accept?
Dr. Maruyama is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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