Dr. Antonio Santiago-Agostini, MD
- Medicare services, 2024
- 398
- Medicare patients, 2024
- 179
- Part D claims, 2024
- 9,053
- MIPS score, 2024
- 83
- Hospital affiliations
- 2
- Practice address
- 826 West King Street, Owosso, MI 48867
- Practice phone
- Call (989) 723-5211
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Santiago-Agostini's professional email, personal email and mobile number
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Dr. Antonio Santiago-Agostini is an internist in Owosso, Michigan
Dr. Santiago-Agostini practices at Memorial Healthcare in Owosso, Michigan, part of Memorial Healthcare.
Dr. Santiago-Agostini's NPI, 1801834445, was assigned on June 4, 2006. Dr. Santiago-Agostini graduated from Ponce School of Medicine in 1985. Dr. Santiago-Agostini holds Michigan license 4301054955.
- NPI
- 1801834445NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082624812
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (989) 723-5211
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Antonio Santiago-Agostini practices at Memorial Healthcare in Owosso, Michigan
Dr. Santiago-Agostini's primary practice is Memorial Healthcare, at 826 West King Street, Owosso, MI 48867 in Shiawassee County. The practice phone is (989) 723-5211.
- Memorial Healthcare826 West King Street, Owosso, MI 48867 · Shiawassee CountyPhone(989) 723-5211
Source: Dmand AI Affiliation Data
Dr. Antonio Santiago-Agostini is affiliated with 4 sites of care and 2 medical groups
Dr. Santiago-Agostini's primary practice is Memorial Healthcare in Owosso, Michigan, part of Memorial Healthcare. Dr. Santiago-Agostini is also affiliated with University of Michigan Health-Sparrow Lansing. The medical group on file is Memorial Medical Associates (MMA). Dmand AI also links Dr. Santiago-Agostini to 2 more group practices and clinics and 1 medical group, 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. Antonio Santiago-Agostini's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santiago-Agostini practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Healthcare | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Antonio Santiago-Agostini is one of 4,804 internists in Michigan
Internal medicine is Dr. Santiago-Agostini's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Santiago-Agostini is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Santiago-Agostini
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. Antonio Santiago-Agostini billed Medicare for 398 services in 2024
CMS data shows 398 Medicare services from Dr. Santiago-Agostini across 3 procedure codes in 2024, all of them office visits, for 179 Medicare patients. Medicare paid $23,083 for them. Every service was in an office.
Dr. Santiago-Agostini's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4112024: 3983%
- Tests and treatments
- 2023: 122024: 0100%
Dr. Santiago-Agostini compared with the Michigan median for internists, 2024
- Dr. Santiago-Agostini
- Michigan median
- Medicare services
- 398vs 4236% below
- Medicare patients
- 179vs 15913% above
- Part D claims
- 8,265vs 31426.3 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Santiago-Agostini'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Antonio Santiago-Agostini treated 179 Medicare patients in 2024, average age 75
CMS counts 179 Medicare patients who saw Dr. Santiago-Agostini in 2024. The largest group is 65 to 74, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Santiago-Agostini's median patient age at 69, with 46% women.
Dr. Santiago-Agostini's Medicare patients by age, 2024
Dr. Santiago-Agostini's Medicare patients by sex, 2024
- Women8648%
- Men9352%
Chronic conditions among Dr. Santiago-Agostini's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes33%
- Ischemic heart disease28%
- Chronic kidney disease22%
- Anxiety20%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Santiago-Agostini's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Antonio Santiago-Agostini wrote 9,053 Medicare Part D claims in 2024
In 2024, Dr. Santiago-Agostini wrote 9,053 Medicare Part D claims for 617 patients. 88% of them were for generic drugs. CMS names the drug for 8,265 of them, across 127 drugs with 11 or more claims each, at $891,798 in total drug cost. In 2023, CMS named 8,042 claims across 134 drugs.
Dr. Santiago-Agostini's Part D claims by kind of drug, 2024
- Generic7,925 claims88%
- Brand-name1,076 claims12%
- Other52 claims1%
Dr. Santiago-Agostini'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. Santiago-Agostini's Part D claims, 2024
- Opioids3%233 of 9,053 claims
- Antibiotics1%84 of 9,053 claims
- Antipsychotics, patients 65 and over0%37 of 9,053 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: 8,0422024: 8,2653%
Drugs named by CMS: 127 in 2024, 134 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. Antonio Santiago-Agostini scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Santiago-Agostini for performance year 2024, reported as part of a group. Dr. Santiago-Agostini accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Santiago-Agostini's MIPS scores, performance year 2024
- 83of 100Final score
- 58.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Antonio Santiago-Agostini received $222 in industry payments from 2017 to 2025
CMS Open Payments shows 5 general payments to Dr. Santiago-Agostini from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $92.
General payments to Dr. Santiago-Agostini by program year, 2017 to 2025
Companies that paid Dr. Santiago-Agostini the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Antonio Santiago-Agostini graduated from Ponce School of Medicine
Dr. Santiago-Agostini graduated from Ponce School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Antonio Santiago-Agostini'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)Clinician Public Reporting: Overall MIPS Performance (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. Antonio Santiago-Agostini
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. Antonio Santiago-Agostini's NPI number?
Dr. Antonio Santiago-Agostini's NPI number is 1801834445. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Antonio Santiago-Agostini?
Dr. Antonio Santiago-Agostini is an internist in Owosso, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Antonio Santiago-Agostini practice?
Dr. Santiago-Agostini practices at 826 West King Street, Owosso, MI 48867. Dr. Santiago-Agostini's primary practice is Memorial Healthcare in Owosso, Michigan, part of Memorial Healthcare. Dmand AI also links Dr. Santiago-Agostini to 2 group practices and clinics and 1 medical group.
What is Dr. Antonio Santiago-Agostini's office phone number?
The practice phone on file for Dr. Santiago-Agostini is (989) 723-5211.
What is Dr. Antonio Santiago-Agostini's medical license number?
Dr. Santiago-Agostini holds Michigan license 4301054955.
Which hospitals is Dr. Antonio Santiago-Agostini affiliated with?
Dr. Santiago-Agostini practices at Memorial Healthcare in Owosso, Michigan. Dr. Santiago-Agostini is also affiliated with University of Michigan Health-Sparrow Lansing.
What medical group is Dr. Antonio Santiago-Agostini part of?
Dr. Santiago-Agostini is linked to Memorial Medical Associates (MMA). Dmand AI links Dr. Santiago-Agostini to 1 more medical group.
Does Dr. Antonio Santiago-Agostini accept Medicare?
Yes. CMS data shows Dr. Santiago-Agostini billed Medicare for 398 services in 2024, and Dr. Santiago-Agostini accepts Medicare assignment.
What is Dr. Antonio Santiago-Agostini's MIPS score?
Dr. Santiago-Agostini's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Antonio Santiago-Agostini see?
CMS counts 179 Medicare patients who saw Dr. Santiago-Agostini in 2024, with an average age of 75.
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What services does Dr. Antonio Santiago-Agostini bill to Medicare?
In 2024, Dr. Santiago-Agostini's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Dr. Antonio Santiago-Agostini go to medical school?
Dr. Santiago-Agostini graduated from Ponce School of Medicine in 1985.
What drugs does Dr. Antonio Santiago-Agostini prescribe most?
In 2024 Medicare Part D data, Dr. Santiago-Agostini's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Antonio Santiago-Agostini received payments from drug or device companies?
CMS Open Payments shows $222 in general payments to Dr. Santiago-Agostini from 5 companies from 2017 to 2025. The largest total came from Amgen Inc.
How long has Dr. Antonio Santiago-Agostini been practicing?
Dr. Santiago-Agostini graduated from medical school in 1985, 41 years ago.
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