Matthew Morris, M.D.
NPI 1578875746 · Family Medicine Physician · Grass Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Morris, M.D. is a Family Medicine Physician provider in Grass Valley, CA (NPI 1578875746).
Provider details
- NPI number
- 1578875746
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R8978 (IA)
Specialties & taxonomies
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
15 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
45 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 30 | $10 |
| Testing for Presence of Drug, Read By Direct Observation80305 | 15 | $12 |
Typical Medicare-allowed amounts for these services range $10–$12 (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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 44 | 15 |
| Rosuvastatin Calcium | 39 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 30 | 11 |
| Empagliflozinbrand: Jardiance | 24 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 24 | 12 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-05
- Last updated
- 2024-01-18
- Certified
- 2024-01-18
Frequently asked questions
- What is Matthew Morris's NPI number?
- Matthew Morris's National Provider Identifier (NPI) is 1578875746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Morris's specialty?
- Matthew Morris is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Morris located?
- Matthew Morris's practice location on file with NPPES is 844 Old Tunnel Rd, Grass Valley, CA 95945-8524.
- What is Matthew Morris's phone number?
- The practice phone number listed in the NPPES registry for Matthew Morris is (530) 274-9762.
- Does Matthew Morris accept Medicare?
- Matthew Morris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Morris's NPI active?
- Yes — Matthew Morris's NPI (1578875746) is active in the NPPES registry as of the last update on 2024-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.