NPPES file of Aug 9, 2026

Lothar McMillian, M.D.

Family Medicine Physician · Laguna Niguel, CA

Lothar McMillian, M.D. is a family medicine physician with a practice address in Laguna Niguel, California, and NPI 1588748891, issued on Oct 24, 2006. Check the license (California A45238, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588748891
Name
Lothar McMillian
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A45238 CA
Self-reported in NPPES; status is on the state search
Practice location
30281 Golden Lantern, Laguna Niguel, CA 92677
Phone
(949) 495-7144
Enumerated
Oct 24, 2006
Record last updated
Feb 19, 2026
Medicare enrollment
Enrolled (PECOS I20100916000523); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 30281 Golden Lantern

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Valery Bergeron-Desimone, PA-CPhysician Assistant1801097704
  2. Bassam Bilal, M.D.Internal Medicine Physician1306890827
  3. Ji Chun, PA-CMedical Physician Assistant1982912945
  4. Vincent Duda, MDInternal Medicine Physician1104883610
  5. Amitpal Kohli, M.D.Endocrinology, Diabetes & Metabolism Physician1215151071
  6. Parisa Mortaji, MDInternal Medicine Physician1083174841

Verify Lothar McMillian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A45238    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.1 times the Medicare Part D claims of the average family medicine physician in 2024

7,446 Medicare Part D claims for 514 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 290 claims were for opioids.

  1. Lothar McMillian7,446
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium541 claims
  2. Levothyroxine Sodium410 claims
  3. Lisinopril260 claims
  4. Amlodipine Besylate219 claims
  5. Losartan Potassium212 claims
  6. Meloxicam208 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $28.00

1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lothar McMillian$28.00
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Centers For Family Medicine GPSan Clemente, CA
  2. Healthcare Partners Affiliates Medical GroupSan Juan Capistrano, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lothar McMillian among 17,133 family medicine physician records in California

Lothar McMillian, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1980 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 family medicine physician records list a practice address in Laguna Niguel

They are 25 of the 885 NPPES records with a practice address in Laguna Niguel, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Laguna Niguel → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Justine Bello, M.D.Laguna Niguel, CA 926771629237276
  2. Angela Calton, M.D.Laguna Niguel, CA 926771043219595
  3. Norman Coakley, D.O.Laguna Niguel, CA 926771801912274
  4. Paul Corona, M.D.Laguna Niguel, CA 926771194876219
  5. Karen Fu, M.DLaguna Niguel, CA 926771528007861
  6. Behnaz Haghighi Motlagh, M.D.Laguna Niguel, CA 926771902125776
  7. Timothy Huston, MDLaguna Niguel, CA 926771124091129
  8. Michael KentLaguna Niguel, CA 926771952335598

Common questions

What is Lothar McMillian, M.D.'s NPI number?

Lothar McMillian, M.D.'s National Provider Identifier (NPI) is 1588748891, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lothar McMillian, M.D. located?

The NPPES record lists a practice address at 30281 Golden Lantern, Laguna Niguel, CA, 92677. Phone: (949) 495-7144. Providers update this record themselves, so call before visiting.

How can I verify Lothar McMillian, M.D.'s license?

NPPES lists California license number A45238, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lothar McMillian, M.D. prescribe under Medicare Part D?

In 2024, Lothar McMillian, M.D. had 7,446 Medicare Part D claims for 514 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.