Katherine Tontillo, MD
NPI 1245681873 · Psychiatry Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Tontillo, MD is a Psychiatry Physician provider in Grand Rapids, MI (NPI 1245681873).
Provider details
- NPI number
- 1245681873
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5315075966 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
316 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 230 | $96 |
| Therapy Using Electrical Currents90870 | 64 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $64 |
Typical Medicare-allowed amounts for these services range $64–$100 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 264 | 59 |
| Trazodone Hcl | 208 | 65 |
| Quetiapine Fumarate | 189 | 44 |
| Fluoxetine Hcl | 150 | 34 |
| Bupropion Hclbrand: Bupropion Xl | 149 | 37 |
| Mirtazapine | 147 | 45 |
| Duloxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-24
- Last updated
- 2019-02-26
Frequently asked questions
- What is Katherine Tontillo's NPI number?
- Katherine Tontillo's National Provider Identifier (NPI) is 1245681873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Tontillo's specialty?
- Katherine Tontillo is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Tontillo located?
- Katherine Tontillo's practice location on file with NPPES is 300 68th St Se, Grand Rapids, MI 49548-6927.
- What is Katherine Tontillo's phone number?
- The practice phone number listed in the NPPES registry for Katherine Tontillo is (616) 455-5000.
- Does Katherine Tontillo accept Medicare?
- Katherine Tontillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Tontillo's NPI active?
- Yes — Katherine Tontillo's NPI (1245681873) is active in the NPPES registry as of the last update on 2019-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.