Richard Day, MD
NPI 1861619355 · Family Medicine Physician · Nipomo, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Day, MD is a Family Medicine Physician provider in Nipomo, CA (NPI 1861619355).
Provider details
- NPI number
- 1861619355
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G55683 (CA)
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
1,407 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 | 607 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 352 | $193 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 183 | $143 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 135 | $98 |
| Hemoglobin A1c Level83036 | 73 | $10 |
| Administration of Influenza Virus VaccineG0008 | 46 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 130 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 595 | 172 |
| Losartan Potassium | 424 | 109 |
| Levothyroxine Sodium | 419 | 114 |
| Amlodipine Besylate | 321 | 89 |
| Metoprolol Succinate | 312 | 82 |
| Lisinopril | 261 | 77 |
| Omeprazole |
Practice location
Mailing address
Additional practice locations (2)
- 2238 Bayview Heights DriveSuite GLos Osos, CA 93402-3921Phone: (805) 534-1305Fax: (805) 534-1347
- 901 Oak Park Blvd Ste 101Pismo Beach, CA 93449-3409Phone: (805) 481-2205Fax: (805) 481-2206
Registry dates
- Enumerated
- 2007-04-19
- Last updated
- 2023-11-02
- Certified
- 2023-11-02
Frequently asked questions
- What is Richard Day's NPI number?
- Richard Day's National Provider Identifier (NPI) is 1861619355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Day's specialty?
- Richard Day is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Day located?
- Richard Day's practice location on file with NPPES is 1560 Mesa Rd Ste 100, Nipomo, CA 93444-6709.
- What is Richard Day's phone number?
- The practice phone number listed in the NPPES registry for Richard Day is (805) 614-5640.
- Does Richard Day accept Medicare?
- Richard Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Day's NPI active?
- Yes — Richard Day's NPI (1861619355) is active in the NPPES registry as of the last update on 2023-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.