Larry Marshall, MD
NPI 1114018132 · Family Medicine Physician · Lakeside, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larry Marshall, MD is a Family Medicine Physician provider in Lakeside, CA (NPI 1114018132).
Provider details
- NPI number
- 1114018132
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 16913 (NV)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
571 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 499 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 29 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $137 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 14 | $61 |
| Urinalysis, Manual Test81002 | 12 | $3 |
Typical Medicare-allowed amounts for these services range $3–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 138 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 467 | 129 |
| Hydrochlorothiazide | 320 | 98 |
| Levothyroxine Sodium | 289 | 72 |
| Lisinopril | 265 | 62 |
| Amlodipine Besylate | 251 | 77 |
| Metformin Hcl | 239 | 65 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$302 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 170 S Green Valley Pkwy Ste 300Henderson, NV 89012-3145Phone: (702) 791-1294Fax: (702) 850-2820
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Larry Marshall's NPI number?
- Larry Marshall's National Provider Identifier (NPI) is 1114018132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Marshall's specialty?
- Larry Marshall is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Marshall located?
- Larry Marshall's practice location on file with NPPES is 12517 Lakeshore Dr, Lakeside, CA 92040-3103.
- What is Larry Marshall's phone number?
- The practice phone number listed in the NPPES registry for Larry Marshall is (619) 443-3843.
- Does Larry Marshall accept Medicare?
- Larry Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larry Marshall's NPI active?
- Yes — Larry Marshall's NPI (1114018132) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.