Dr. Michael J. Santiago, DO
- Medicare services, 2024
- 943
- Medicare patients, 2024
- 616
- Part D claims, 2024
- 227
- Hospital affiliations
- 2
- Industry payments
- $15
- Practice address
- 6701 North Charles Street, Baltimore, MD 21204
- Practice phone
- Call (443) 849-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Santiago'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 J. Santiago is an emergency medicine physician in Towson, Maryland
Dr. Santiago practices at Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare.
Dr. Santiago's NPI, 1871609321, was assigned on August 21, 2006. Dr. Santiago graduated from Lake Erie College of Osteopathic Medicine, Erie in 2006. Dr. Santiago holds New York license 253190-1.
- NPI
- 1871609321NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789738774
- NPI enumeration date
- August 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 849-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Santiago practices at Greater Baltimore Medical Center in Baltimore, Maryland
Dr. Santiago's primary practice is Greater Baltimore Medical Center, at 6701 North Charles Street, Baltimore, MD 21204 in Baltimore County. The practice phone is (443) 849-2000.
- Greater Baltimore Medical Center6701 North Charles Street, Baltimore, MD 21204 · Baltimore CountyPhone(443) 849-2000
Source: Dmand AI Affiliation Data
Dr. Michael J. Santiago is affiliated with 2 sites of care and 2 medical groups
Dr. Santiago's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. Dr. Santiago is also affiliated with St. Charles Bend. The medical group on file is Vituity. Dmand AI also links Dr. Santiago to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael J. Santiago's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santiago practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Baltimore Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Santiago is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Santiago's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Santiago's licenses on file in 2 states: New York and Maryland.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
- Maryland license
Emergency medicine physicians near Dr. Santiago
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. Michael J. Santiago billed Medicare for 943 services in 2024
CMS data shows 943 Medicare services from Dr. Santiago across 5 procedure codes in 2024, for 616 Medicare patients. Medicare paid $86,370 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Santiago's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5492024: 60711%
- Tests and treatments
- 2023: 1792024: 32179%
- Imaging
- 2023: 02024: 15
Dr. Santiago compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Santiago
- Maryland median
- Medicare services
- 943vs 3003.1 times
- Medicare patients
- 616vs 2922.1 times
- Part D claims
- 94vs 442.1 times
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Santiago'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. Michael J. Santiago treated 616 Medicare patients in 2024, average age 77
CMS counts 616 Medicare patients who saw Dr. Santiago in 2024. The largest group is 75 to 84, with 222 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.85, 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. Santiago's median patient age at 53, with 56% women.
Dr. Santiago's Medicare patients by age, 2024
Dr. Santiago's Medicare patients by sex, 2024
- Women36559%
- Men25141%
Chronic conditions among Dr. Santiago's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Mood disorders44%
- Anxiety41%
- Depression40%
- Chronic kidney disease39%
- Diabetes38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Santiago's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Santiago wrote 227 Medicare Part D claims in 2024
In 2024, Dr. Santiago wrote 227 Medicare Part D claims for 149 patients. 97% of them were for generic drugs. CMS names the drug for 94 of them, across 5 drugs with 11 or more claims each, at $612 in total drug cost. In 2023, CMS named 39 claims across 2 drugs.
Dr. Santiago's Part D claims by kind of drug, 2024
- Generic221 claims97%
- Brand-name and other6 claims3%
Dr. Santiago'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's Part D claims, 2024
- Opioids25%56 of 227 claims
- Antibiotics28%63 of 227 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: 392024: 94141%
Drugs named by CMS: 5 in 2024, 2 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. Michael J. Santiago takes part in Medicare
Dr. Santiago 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. Michael J. Santiago received $15 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Santiago from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Alexion Pharmaceuticals, Inc. paid the most, $15.
Companies that paid Dr. Santiago the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Santiago graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Santiago graduated from Lake Erie College of Osteopathic Medicine, Erie in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Santiago'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. Michael J. Santiago
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 J. Santiago's NPI number?
Dr. Michael J. Santiago's NPI number is 1871609321. It was assigned on August 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Santiago?
Dr. Michael J. Santiago is an emergency medicine physician in Towson, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael J. Santiago practice?
Dr. Santiago practices at 6701 North Charles Street, Baltimore, MD 21204. Dr. Santiago's primary practice is Greater Baltimore Medical Center in Baltimore, Maryland, part of GBMC HealthCare. Dmand AI also links Dr. Santiago to 1 medical group.
What is Dr. Michael J. Santiago's office phone number?
The practice phone on file for Dr. Santiago is (443) 849-2000.
What is Dr. Michael J. Santiago's medical license number?
Dr. Santiago holds New York license 253190-1, one of the licenses on file in 2 states.
Which states has Dr. Michael J. Santiago been licensed in?
Dmand AI has state licenses on file for Dr. Santiago in New York and Maryland.
Which hospitals is Dr. Michael J. Santiago affiliated with?
Dr. Santiago practices at Greater Baltimore Medical Center in Baltimore, Maryland. Dr. Santiago is also affiliated with St. Charles Bend.
What medical group is Dr. Michael J. Santiago part of?
Dr. Santiago is linked to Vituity. Dmand AI links Dr. Santiago to 1 more medical group.
Does Dr. Michael J. Santiago accept Medicare?
Yes. CMS data shows Dr. Santiago billed Medicare for 943 services in 2024, and Dr. Santiago accepts Medicare assignment.
How many Medicare patients does Dr. Michael J. Santiago see?
CMS counts 616 Medicare patients who saw Dr. Santiago in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Michael J. Santiago bill to Medicare?
In 2024, Dr. Santiago's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Michael J. Santiago go to medical school?
Dr. Santiago graduated from Lake Erie College of Osteopathic Medicine, Erie in 2006.
What drugs does Dr. Michael J. Santiago prescribe most?
In 2024 Medicare Part D data, Dr. Santiago's most prescribed drugs by claims were Oxycodone HCl, Tramadol HCl and Cefdinir.
Has Dr. Michael J. Santiago received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Santiago from 1 company from 2016 to 2016. The largest total came from Alexion Pharmaceuticals, Inc.
How long has Dr. Michael J. Santiago been practicing?
Dr. Santiago graduated from medical school in 2006, 20 years ago.
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