Karen Weaver, MD
NPI 1265412456 · Family Medicine Physician · Westland, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Weaver, MD is a Family Medicine Physician provider in Westland, MI (NPI 1265412456).
Provider details
- NPI number
- 1265412456
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301083883 (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
20 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
71 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 | 57 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 | $66 |
Typical Medicare-allowed amounts for these services range $66–$91 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 66 | 25 |
| Gabapentin | 64 | 14 |
| Amlodipine Besylate | 56 | 26 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 45 | — |
| Levothyroxine Sodium | 40 | 16 |
| Metoprolol Succinate | 32 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-23
- Last updated
- 2020-10-22
- Certified
- 2020-10-22
Frequently asked questions
- What is Karen Weaver's NPI number?
- Karen Weaver's National Provider Identifier (NPI) is 1265412456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Weaver's specialty?
- Karen Weaver is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Weaver located?
- Karen Weaver's practice location on file with NPPES is 2001 S Merriman Rd, Westland, MI 48186-5539.
- What is Karen Weaver's phone number?
- The practice phone number listed in the NPPES registry for Karen Weaver is (734) 727-1000.
- Does Karen Weaver accept Medicare?
- Karen Weaver is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Weaver's NPI active?
- Yes — Karen Weaver's NPI (1265412456) is active in the NPPES registry as of the last update on 2020-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.