Dr. David Tetsuji Ishiyama, MD
- Medicare services, 2024
- 687
- Medicare patients, 2024
- 545
- Part D claims, 2024
- 128
- Hospital affiliations
- 1
- Industry payments
- $11
- Practice address
- 205 N East Ave, Jackson, MI 49201
- Practice phone
- Call (517) 788-4800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ishiyama's professional email, personal email and mobile number
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Dr. David Tetsuji Ishiyama is an emergency medicine physician in Jackson, Michigan
Dr. Ishiyama practices at Henry Ford Jackson Hospital in Jackson, Michigan, part of Henry Ford Health.
Dr. Ishiyama's NPI, 1407177884, was assigned on June 19, 2010. Dr. Ishiyama graduated from Michigan State University College of Human Medicine in 2010. Dr. Ishiyama holds Michigan license 4301096372.
- NPI
- 1407177884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800037193
- NPI enumeration date
- June 19, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (517) 788-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Tetsuji Ishiyama practices at Henry Ford Jackson Hospital in Jackson, Michigan
Dr. Ishiyama's primary practice is Henry Ford Jackson Hospital, at 205 N East Ave, Jackson, MI 49201 in Jackson County. The practice phone is (517) 788-4800.
- Henry Ford Jackson Hospital205 N East Ave, Jackson, MI 49201 · Jackson CountyPhone(517) 788-4800
Source: Dmand AI Affiliation Data
Dr. David Tetsuji Ishiyama is affiliated with 1 site of care and 4 medical groups
Dr. Ishiyama's primary practice is Henry Ford Jackson Hospital in Jackson, Michigan, part of Henry Ford Health. The medical group on file is Henry Ford Jackson Hospital (formerly Henry Ford Allegiance Health). Dmand AI also links Dr. Ishiyama to 3 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Tetsuji Ishiyama's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ishiyama practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Henry Ford Jackson Hospital | Available with a free account |
| +3 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 Henry Ford Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Tetsuji Ishiyama is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Ishiyama's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ishiyama is licensed in Michigan.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
Emergency medicine physicians near Dr. Ishiyama
Counts of emergency 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. David Tetsuji Ishiyama billed Medicare for 687 services in 2024
CMS data shows 687 Medicare services from Dr. Ishiyama across 7 procedure codes in 2024, for 545 Medicare patients. Medicare paid $70,951 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ishiyama's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5422024: 5858%
- Tests and treatments
- 2023: 1172024: 10213%
Dr. Ishiyama compared with the Michigan median for emergency medicine physicians, 2024
- Dr. Ishiyama
- Michigan median
- Medicare services
- 687vs 2342.9 times
- Medicare patients
- 545vs 2142.5 times
- Part D claims
- 42vs 469% below
Medians across 1,937 emergency medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Ishiyama'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. Ishiyama?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ishiyama and other emergency medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Tetsuji Ishiyama treated 545 Medicare patients in 2024, average age 71
CMS counts 545 Medicare patients who saw Dr. Ishiyama in 2024. The largest group is 75 to 84, with 164 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ishiyama's median patient age at 55, with 53% women.
Dr. Ishiyama's Medicare patients by age, 2024
Dr. Ishiyama's Medicare patients by sex, 2024
- Women29654%
- Men24946%
Chronic conditions among Dr. Ishiyama's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis50%
- Mood disorders46%
- Ischemic heart disease44%
- Anxiety42%
- Depression41%
- Diabetes37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ishiyama's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Tetsuji Ishiyama wrote 128 Medicare Part D claims in 2024
In 2024, Dr. Ishiyama wrote 128 Medicare Part D claims for 76 patients. 95% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $162 in total drug cost. In 2023, CMS named 44 claims across 3 drugs.
Dr. Ishiyama's Part D claims by kind of drug, 2024
- Generic122 claims95%
- Brand-name and other6 claims5%
Dr. Ishiyama'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. Ishiyama's Part D claims, 2024
- Opioids16%20 of 128 claims
- Antibiotics24%31 of 128 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: 442024: 425%
Drugs named by CMS: 3 in 2024, 3 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. David Tetsuji Ishiyama takes part in Medicare
Dr. Ishiyama 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. David Tetsuji Ishiyama received $11 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Ishiyama from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $11.
Companies that paid Dr. Ishiyama the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Tetsuji Ishiyama graduated from Michigan State University College of Human Medicine
Dr. Ishiyama graduated from Michigan State University College of Human Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Tetsuji Ishiyama'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 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 |
| 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. David Tetsuji Ishiyama
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. David Tetsuji Ishiyama's NPI number?
Dr. David Tetsuji Ishiyama's NPI number is 1407177884. It was assigned on June 19, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. David Tetsuji Ishiyama?
Dr. David Tetsuji Ishiyama is an emergency medicine physician in Jackson, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David Tetsuji Ishiyama practice?
Dr. Ishiyama practices at 205 N East Ave, Jackson, MI 49201. Dr. Ishiyama's primary practice is Henry Ford Jackson Hospital in Jackson, Michigan, part of Henry Ford Health. Dmand AI also links Dr. Ishiyama to 3 medical groups.
What is Dr. David Tetsuji Ishiyama's office phone number?
The practice phone on file for Dr. Ishiyama is (517) 788-4800.
What is Dr. David Tetsuji Ishiyama's medical license number?
Dr. Ishiyama holds Michigan license 4301096372.
Which hospitals is Dr. David Tetsuji Ishiyama affiliated with?
Dr. Ishiyama practices at Henry Ford Jackson Hospital in Jackson, Michigan.
What medical group is Dr. David Tetsuji Ishiyama part of?
Dr. Ishiyama is linked to Henry Ford Jackson Hospital (formerly Henry Ford Allegiance Health). Dmand AI links Dr. Ishiyama to 3 more medical groups.
Does Dr. David Tetsuji Ishiyama accept Medicare?
Yes. CMS data shows Dr. Ishiyama billed Medicare for 687 services in 2024, and Dr. Ishiyama accepts Medicare assignment.
How many Medicare patients does Dr. David Tetsuji Ishiyama see?
CMS counts 545 Medicare patients who saw Dr. Ishiyama in 2024, with an average age of 71.
What services does Dr. David Tetsuji Ishiyama bill to Medicare?
In 2024, Dr. Ishiyama's most billed Medicare services were emergency department visit (99285), heart test or procedure (93042) and emergency department visit (99284).
Show 4 more questionsShow fewer questions
Where did Dr. David Tetsuji Ishiyama go to medical school?
Dr. Ishiyama graduated from Michigan State University College of Human Medicine in 2010.
What drugs does Dr. David Tetsuji Ishiyama prescribe most?
In 2024 Medicare Part D data, Dr. Ishiyama's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Prednisone.
Has Dr. David Tetsuji Ishiyama received payments from drug or device companies?
CMS Open Payments shows $11 in general payments to Dr. Ishiyama from 1 company from 2017 to 2017. The largest total came from Pfizer Inc.
How long has Dr. David Tetsuji Ishiyama been practicing?
Dr. Ishiyama graduated from medical school in 2010, 16 years ago.
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