Dr. Katherine Maria Tontillo, MD
- Medicare services, 2024
- 316
- Medicare patients, 2024
- 113
- Part D claims, 2024
- 3,013
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 300 - 68th Street, SE, Grand Rapids, MI 49548
- Practice phone
- Call (616) 455-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tontillo's professional email, personal email and mobile number
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Dr. Katherine Maria Tontillo is a psychiatrist in Grand Rapids, Michigan
Dr. Tontillo practices at Pine Rest Christian Mental Health Services in Grand Rapids, Michigan, part of Pine Rest Christian Mental Health Services.
Dr. Tontillo's NPI, 1245681873, was assigned on June 24, 2016. Dr. Tontillo holds Michigan license 4351036679.
- NPI
- 1245681873NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466745674
- NPI enumeration date
- June 24, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (616) 455-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Maria Tontillo practices at Pine Rest Christian Mental Health Services in Grand Rapids, Michigan
Dr. Tontillo's primary practice is Pine Rest Christian Mental Health Services, at 300 - 68th Street, SE, Grand Rapids, MI 49548 in Kent County. The practice phone is (616) 455-5000.
- Pine Rest Christian Mental Health Services300 - 68th Street, SE, Grand Rapids, MI 49548 · Kent CountyPhone(616) 455-5000
Source: Dmand AI Affiliation Data
Dr. Katherine Maria Tontillo is affiliated with 2 sites of care and 1 medical group
Dr. Tontillo's primary practice is Pine Rest Christian Mental Health Services in Grand Rapids, Michigan, part of Pine Rest Christian Mental Health Services. Dr. Tontillo is also affiliated with University of Michigan Health-West Hospital. The medical group on file is Pine Rest Christian Mental Health Services. Dr. Tontillo's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Maria Tontillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tontillo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pine Rest Christian Mental Health Services | Available with a free account |
| +1 more affiliated site | 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 Pine Rest Christian Mental Health Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Katherine Maria Tontillo is one of 1,337 psychiatrists in Michigan
Psychiatry is Dr. Tontillo's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Tontillo is licensed in Michigan.
Specialties and state licenses
- Psychiatry, MichiganPrimary
Psychiatrists near Dr. Tontillo
Counts of psychiatrists 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. Katherine Maria Tontillo billed Medicare for 316 services in 2024
CMS data shows 316 Medicare services from Dr. Tontillo across 3 procedure codes in 2024, for 113 Medicare patients. Medicare paid $21,133 for them.
Dr. Tontillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2172024: 25216%
- Tests and treatments
- 2023: 992024: 6435%
Where Dr. Tontillo's Medicare services took place, 2024
- In an office25280%
- In a facility6420%
Dr. Tontillo compared with the Michigan median for psychiatrists, 2024
- Dr. Tontillo
- Michigan median
- Medicare services
- 316vs 1472.1 times
- Medicare patients
- 113vs 482.4 times
- Part D claims
- 2,866vs 21513.3 times
Medians across 1,367 psychiatrists in Michigan with Dmand AI profiles that report each measure.
Dr. Tontillo'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. Katherine Maria Tontillo treated 113 Medicare patients in 2024, average age 67
CMS counts 113 Medicare patients who saw Dr. Tontillo in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have anxiety, and 75% have mood disorders. 28% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tontillo's median patient age at 46, with 68% women.
Dr. Tontillo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tontillo's Medicare patients by sex, 2024
- Women8474%
- Men2926%
Chronic conditions among Dr. Tontillo's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- Depression74%
- High blood pressure65%
- High cholesterol65%
- Arthritis50%
- Bipolar disorder40%
- Schizophrenia and other psychoses25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tontillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Maria Tontillo wrote 3,013 Medicare Part D claims in 2024
In 2024, Dr. Tontillo wrote 3,013 Medicare Part D claims for 256 patients. 98% of them were for generic drugs. CMS names the drug for 2,866 of them, across 42 drugs with 11 or more claims each, at $64,735 in total drug cost. In 2023, CMS named 2,309 claims across 36 drugs.
Dr. Tontillo's Part D claims by kind of drug, 2024
- Generic2,944 claims98%
- Brand-name69 claims2%
Dr. Tontillo'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. Tontillo's Part D claims, 2024
- Antipsychotics, patients 65 and over13%396 of 3,013 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: 2,3092024: 2,86624%
Drugs named by CMS: 42 in 2024, 36 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. Katherine Maria Tontillo offers telehealth to Medicare patients
Dr. Tontillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tontillo as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Katherine Maria Tontillo'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) |
| 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. Katherine Maria Tontillo
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. Katherine Maria Tontillo's NPI number?
Dr. Katherine Maria Tontillo's NPI number is 1245681873. It was assigned on June 24, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Maria Tontillo?
Dr. Katherine Maria Tontillo is a psychiatrist in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Katherine Maria Tontillo practice?
Dr. Tontillo practices at 300 - 68th Street, SE, Grand Rapids, MI 49548. Dr. Tontillo's primary practice is Pine Rest Christian Mental Health Services in Grand Rapids, Michigan, part of Pine Rest Christian Mental Health Services.
What is Dr. Katherine Maria Tontillo's office phone number?
The practice phone on file for Dr. Tontillo is (616) 455-5000.
What is Dr. Katherine Maria Tontillo's medical license number?
Dr. Tontillo holds Michigan license 4351036679.
Which hospitals is Dr. Katherine Maria Tontillo affiliated with?
Dr. Tontillo practices at Pine Rest Christian Mental Health Services in Grand Rapids, Michigan. Dr. Tontillo is also affiliated with University of Michigan Health-West Hospital.
What medical group is Dr. Katherine Maria Tontillo part of?
Dr. Tontillo is linked to Pine Rest Christian Mental Health Services.
Does Dr. Katherine Maria Tontillo accept Medicare?
Yes. CMS data shows Dr. Tontillo billed Medicare for 316 services in 2024, and Dr. Tontillo accepts Medicare assignment.
Does Dr. Katherine Maria Tontillo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tontillo as offering telehealth services.
How many Medicare patients does Dr. Katherine Maria Tontillo see?
CMS counts 113 Medicare patients who saw Dr. Tontillo in 2024, with an average age of 67.
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What services does Dr. Katherine Maria Tontillo bill to Medicare?
In 2024, Dr. Tontillo's most billed Medicare services were office visit, established patient (99214), psychiatric service (90870) and office visit, established patient (99213).
What drugs does Dr. Katherine Maria Tontillo prescribe most?
In 2024 Medicare Part D data, Dr. Tontillo's most prescribed drugs by claims were Gabapentin, Trazodone HCl and Quetiapine Fumarate.
How long has Dr. Katherine Maria Tontillo been practicing?
Dr. Tontillo graduated from medical school in 2016, 10 years ago.
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