Katherine Weaver, MD
NPI 1770084220 · Psychiatry Physician · Billings, MT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Weaver, MD is a Psychiatry Physician provider in Billings, MT (NPI 1770084220).
Provider details
- NPI number
- 1770084220
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 61149 (MT)
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
8 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
189 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 | 134 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $126 |
Typical Medicare-allowed amounts for these services range $89–$126 (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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 176 | 21 |
| Aripiprazole | 175 | 16 |
| Olanzapine | 137 | 12 |
| Lamotrigine | 92 | — |
| Trazodone Hcl | 71 | — |
| Escitalopram Oxalate | 68 | — |
| Lorazepam | 67 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-02-21
- Last updated
- 2018-02-21
Frequently asked questions
- What is Katherine Weaver's NPI number?
- Katherine Weaver's National Provider Identifier (NPI) is 1770084220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Weaver's specialty?
- Katherine Weaver is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Weaver located?
- Katherine Weaver's practice location on file with NPPES is 1245 N 29th St, Billings, MT 59101-0122.
- What is Katherine Weaver's phone number?
- The practice phone number listed in the NPPES registry for Katherine Weaver is (406) 252-5658.
- Does Katherine Weaver accept Medicare?
- Katherine Weaver is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Weaver's NPI active?
- Yes — Katherine Weaver's NPI (1770084220) is active in the NPPES registry as of the last update on 2018-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.