Merilee Summerfield, PA
NPI 1467531988 · Family Medicine Physician · Spring Valley, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merilee Summerfield, PA is a Family Medicine Physician provider in Spring Valley, CA (NPI 1467531988).
Provider details
- NPI number
- 1467531988
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA14929 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,138 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 | 482 | $83 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 233 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 219 | $116 |
| Urinalysis, Manual Test81002 | 49 | $3 |
| Administration of Influenza Virus VaccineG0008 | 43 | $35 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 31 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 211 | 66 |
| Atorvastatin Calcium | 196 | 70 |
| Losartan Potassium | 177 | 56 |
| Amlodipine Besylate | 126 | 49 |
| Montelukast Sodium | 126 | 44 |
| Metoprolol Succinate | 118 | 36 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Merilee Summerfield's NPI number?
- Merilee Summerfield's National Provider Identifier (NPI) is 1467531988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merilee Summerfield's specialty?
- Merilee Summerfield is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Merilee Summerfield located?
- Merilee Summerfield's practice location on file with NPPES is 10225 Austin Dr, Spring Valley, CA 91978-1500.
- What is Merilee Summerfield's phone number?
- The practice phone number listed in the NPPES registry for Merilee Summerfield is (619) 660-6003.
- Does Merilee Summerfield accept Medicare?
- Merilee Summerfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Merilee Summerfield's NPI active?
- Yes — Merilee Summerfield's NPI (1467531988) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.