Dr. Lawrence A. Harms, MD

  • Fontana, CA
  • General surgeon
NPI1821146739
Part D claims, 2024
23
Hospital affiliations
1
Medical group
1
Insurance carriers
2
State license
1
Practice address
9965 Sierra Ave, Fontana, CA 92335
Practice phone
Call (909) 427-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente - Fontana Medical Center

Fontana, California

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Dr. Lawrence A. Harms is a general surgeon in Fontana, California

Dr. Harms practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.

Dr. Harms' NPI, 1821146739, was assigned on January 8, 2007. Dr. Harms graduated from Loma Linda University School Of Medicine in 1983. Dr. Harms holds California license G53038.

NPI and contact details
NPI enumeration date
January 8, 2007
NPI status
Active
Practice phone
(909) 427-5000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
69
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Lawrence A. Harms practices at Kaiser Permanente - Fontana Medical Center in Fontana, California

Dr. Harms' primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.

  • Kaiser Permanente - Fontana Medical Center
    9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Lawrence A. Harms is affiliated with 2 sites of care and 1 medical group

Dr. Harms' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Harms is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.

See all 3 affiliations for Dr. Harms

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Lawrence A. Harms' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harms practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente - Fontana Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lawrence A. Harms is one of 2,926 general surgeons in California

Surgery is Dr. Harms' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Harms is board certified in surgery by the American Board of Surgery. Dr. Harms is licensed in California.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense G53038 · 1984 to 2026 · taxonomy 208600000X

General surgeons near Dr. Harms

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Lawrence A. Harms' patients have a median age of 53

Across all payers, Dmand AI patient panel data puts Dr. Harms' median patient age at 53, with 61% women.

Dr. Harms' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women61%
  • Men39%

Source: Dmand AI Patient Panel Data

Dr. Lawrence A. Harms wrote 23 Medicare Part D claims in 2024

In 2024, Dr. Harms wrote 23 Medicare Part D claims for 16 patients. 100% of them were for generic drugs. They cover 1 drug, with $229 in total drug cost. In 2022, CMS named 12 claims across 1 drug.

Part D claims, 202423
Drugs named by CMS1
Total drug cost$229
Part D patients16

Dr. Harms' most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Harms' Part D claims, 2024

  • Antibiotics57%13 of 23 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 122023: 2392%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Harms

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Lawrence A. Harms graduated from Loma Linda University School Of Medicine

Dr. Harms graduated from Loma Linda University School Of Medicine in 1983.

  1. Medical schoolLoma Linda University School Of Medicine
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in surgical critical careAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Lawrence A. Harms accepts plans from 2 insurance carriers

Dr. Harms is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Harms accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Lawrence A. Harms's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Lawrence A. Harms

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Lawrence A. Harms' NPI number?

Dr. Lawrence A. Harms' NPI number is 1821146739. It was assigned on January 8, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Lawrence A. Harms?

Dr. Lawrence A. Harms is a general surgeon in Fontana, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Lawrence A. Harms practice?

Dr. Harms practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Harms' primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.

What is Dr. Lawrence A. Harms' office phone number?

The practice phone on file for Dr. Harms is (909) 427-5000.

What is Dr. Lawrence A. Harms' medical license number?

Dr. Harms holds California license G53038.

Which hospitals is Dr. Lawrence A. Harms affiliated with?

Dr. Harms is affiliated with Fontana Medical Center.

What medical group is Dr. Lawrence A. Harms part of?

Dr. Harms is linked to Southern California Permanente Medical Group.

Is Dr. Lawrence A. Harms board certified?

Yes. Dr. Harms is board certified in surgery by the American Board of Surgery.

Where did Dr. Lawrence A. Harms go to medical school?

Dr. Harms graduated from Loma Linda University School Of Medicine in 1983.

What drugs does Dr. Lawrence A. Harms prescribe most?

In 2023 Medicare Part D data, Dr. Harms' most prescribed drugs by claims were Cephalexin.

How long has Dr. Lawrence A. Harms been practicing?

Dr. Harms graduated from medical school in 1983, 43 years ago.

What insurance does Dr. Lawrence A. Harms accept?

Dr. Harms is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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