Isabel Norian, MD
NPI 1831205863 · Psychiatry Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Norian, MD is a Psychiatry Physician provider in Grand Rapids, MI (NPI 1831205863).
Provider details
- NPI number
- 1831205863
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301500985 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
359 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 206 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 43 | $170 |
Typical Medicare-allowed amounts for these services range $85–$170 (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 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxcarbazepine | 352 | 29 |
| Buspirone Hcl | 316 | 24 |
| Risperidone | 303 | 21 |
| Lurasidone Hcl | 231 | 17 |
| Sertraline Hcl | 207 | 19 |
| Quetiapine Fumarate | 196 | 14 |
| Trazodone Hcl | 193 | 21 |
| Clozapine |
Practice location
Mailing address
Additional practice locations (2)
- 111 Colchester AveMail Stop 259PA4Burlington, VT 05401-1473Phone: (802) 847-2162
- 111 Colchester AveMail Stop 259PA4Burlington, VT 05401-1473Phone: (802) 847-2162
Registry dates
- Enumerated
- 2006-08-22
- Last updated
- 2022-02-02
- Certified
- 2022-02-02
Frequently asked questions
- What is Isabel Norian's NPI number?
- Isabel Norian's National Provider Identifier (NPI) is 1831205863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Norian's specialty?
- Isabel Norian is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Isabel Norian located?
- Isabel Norian's practice location on file with NPPES is 790 Fuller Ave Ne, Grand Rapids, MI 49503.
- What is Isabel Norian's phone number?
- The practice phone number listed in the NPPES registry for Isabel Norian is (616) 336-3765.
- Does Isabel Norian accept Medicare?
- Isabel Norian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Norian's NPI active?
- Yes — Isabel Norian's NPI (1831205863) is active in the NPPES registry as of the last update on 2022-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.