Marie Knorr, MD
NPI 1467688598 · Emergency Medicine Physician · Mechanicsville, VA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marie Knorr, MD is a Emergency Medicine Physician provider in Mechanicsville, VA (NPI 1467688598).
Provider details
- NPI number
- 1467688598
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 010125601 (VA)
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
17 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
454 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 253 | $163 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 106 | $113 |
| Critical Care, First 30-74 Minutes99291 | 76 | $198 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 19 | $68 |
Typical Medicare-allowed amounts for these services range $68–$198 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Naproxen | 52 | 52 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 49 | 47 |
| Ondansetron Hcl | 46 | 46 |
| Prednisone | 32 | 31 |
| Cephalexin | 29 | 29 |
| Dicyclomine Hcl | 23 | 18 |
| Butalb/Acetaminophen/Caffeinebrand: Butalbital-Acetaminophen-Caffe | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-03
- Last updated
- 2014-01-10
Frequently asked questions
- What is Marie Knorr's NPI number?
- Marie Knorr's National Provider Identifier (NPI) is 1467688598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marie Knorr's specialty?
- Marie Knorr is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marie Knorr located?
- Marie Knorr's practice location on file with NPPES is 8260 Atlee Rd, Mechanicsville, VA 23116-1844.
- What is Marie Knorr's phone number?
- The practice phone number listed in the NPPES registry for Marie Knorr is (804) 764-6300.
- Does Marie Knorr accept Medicare?
- Marie Knorr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marie Knorr's NPI active?
- Yes — Marie Knorr's NPI (1467688598) is active in the NPPES registry as of the last update on 2014-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.