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DR. LARRY J MARSHALL MD
NPI 1114018132
Family Medicine in Lakeside, CA

Active since September 27, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D0860421 · Waiver
12517 LAKESHORE DR, LAKESIDE, CA 92040(619) 443-3843(619) 390-1810 Get Directions Write a Review

NPPES record last updated: December 16, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 16, 2020, Jul 31, 2019, May 17, 2016 (3 updates tracked since 2016).

About Dr. Larry J Marshall Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LARRY J MARSHALL MD (NPI 1114018132) is an individual family medicine provider in Lakeside, California, licensed in California (A52344) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through December 14, 2027, and maintains a secondary practice location in Henderson.

NPPES Registry Identity

NPI1114018132
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. LARRY J MARSHALLCredential: MD
Location Address12517 LAKESHORE DRLakeside, CA 92040-3103
Mailing Address12517 Lakeshore DrLakeside, CA 92040-3103 · (619) 443-3843 · Fax (619) 390-1810
Phone(619) 443-3843
Fax(619) 390-1810
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateSeptember 27, 2006
Last NPPES UpdateDecember 16, 20203 updates tracked since enumeration
NPPES CertifiedDecember 16, 2020
✔ NPI 1114018132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in CA · A52344✔ Licensed in NV · 16913
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
12517 LAKESHORE DR, Lakeside, CA 92040
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Secondary Practice Location 1

Location 1170 S Green Valley Pkwy Ste 300Henderson, NV 89012-3145 · Phone (702) 791-1294 · Fax (702) 850-2820

Other Identifiers 1

Medicaid00A523440CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Larry J Marshall Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860420486
PECOS Enrollment IDI20110504000301
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Larry Marshall reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Larry J Marshall MD A Professional Corporation
Same address
General Practice
12517 LAKESHORE DR
Lakeside, CA 92040
  • Reassigned Medicare billing, California enrollment
NPI 1689884942 (619) 443-3843
Emergency And Acute Care Medical Corporation
14 mi
Emergency Medicine
7901 FROST ST
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 1,437 clinicians in this Medicare group
NPI 1437103942 (858) 939-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0860421

Larry J Marshall, MD, Apc · Lakeside, CA
Active · expires Dec 14, 2027
CLIA Number05D0860421
Laboratory TypePhysician Office
Certificate Effective DateDecember 15, 2025
Certificate Expiration DateDecember 14, 2027
Laboratory DirectorLarry J. Marshall, MD
Laboratory Phone(619) 443-3843
Laboratory LocationLarry J Marshall, MD, Apc12517 Lakeshore Dr, Lakeside, CA 92040
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
499 services199 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
29 services29 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
17 services17 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
14 services13 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92040 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Cervical Cancer Screening
Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…
34%558 patients
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
43%1,053 patients3/55-star benchmark: 85%
Depression Utilization of the PHQ-9 Tool
The percentage of patients age 18 and older with the diagnosis of major depression or dysthymia who have a completed PHQ-9 during each applicable 4 month period in which there was a qualifying visit
Patients 4MonthsOfEnd: 24% · 258 patients
Patients 4MonthsOfStart: 20% · 245 patients
23%234 patients
Diabetes: Medical Attention for Nephropathy
The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period
89%258 patients4/55-star benchmark: 99%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
99%13,387 patients5/55-star benchmark: 99%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
42%495 patients2/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
47%779 patients3/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
67%219 patients1/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
10%2,032 patients1/55-star benchmark: 97%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
23%1,610 patients1/55-star benchmark: 96%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
43%2,032 patients2/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
4%2,032 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
9%2,032 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers20 claims63 services$5.78 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
3 suppliers12 claims12 services$48.20 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
3 suppliers12 claims12 services$15.17 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
3 suppliers12 claims12 services$10.68 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers20 claims93 services$1.76 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier32 claims32 services$23.10 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. VICTOR MANUEL MENDOZA-FERNANDEZ
Family Medicine
12517 LAKESHORE DR
LAKESIDE, CA 92040
San Diego County (619) 443-3843
JACOB THOMAS BOLZ PA-C
Physician Assistant
12517 LAKESHORE DR
LAKESIDE, CA 92040
San Diego County (619) 443-3843
LARRY J MARSHALL MD A PROFESSIONAL CORPORATION
General Practice
12517 LAKESHORE DR
LAKESIDE, CA 92040
San Diego County (619) 443-3843

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Larry Marshall's NPI number?

The NPI number for Larry Marshall is 1114018132. It was assigned to this individual provider in the NPPES registry on September 27, 2006.

Where is Larry Marshall located?

Larry Marshall practices at 12517 Lakeshore Dr, Lakeside, CA 92040. The listed phone number is (619) 443-3843.

What is Larry Marshall's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Larry Marshall enrolled in Medicare?

Yes. Larry Marshall is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Larry Marshall's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Larry Marshall reassigns Medicare benefits to 2 organizations: Larry J Marshall MD A Professional Corporation (Lakeside, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Larry Marshall's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Larry Marshall hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0860421) is associated with this NPI, valid through December 14, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Larry Marshall was last updated on December 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.