NPPES file of Aug 9, 2026

Julia Collins Motherway, M.D.

Internal Medicine Physician · Tustin, CA

Julia Collins Motherway, M.D. is an internal medicine physician with a practice address in Tustin, California, and NPI 1962544494, issued on Feb 12, 2007. Check the license (California A061483, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962544494
Name
Julia Collins Motherway
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A061483 CA
Self-reported in NPPES; status is on the state search
Practice location
17400 Irvine Blvd, Tustin, CA 92780
Phone
(714) 838-5610
Enumerated
Feb 12, 2007
Record last updated
May 22, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090819000816); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1994
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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Also registered at 17400 Irvine Blvd

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

  1. Charles Baik, DPMPodiatrist1871604314
  2. Susan Ban, M.D.Internal Medicine Physician1053324970
  3. James Boyd, D.D.S.General Practice Dentistry1346499118
  4. Christine Burnell, M.A.Speech-Language Pathologist1285780338
  5. Janice Coia, DPMPodiatrist1750347399
  6. Huong Duong, M.D.Internal Medicine Physician1013020437

Verify Julia Collins Motherway in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A061483
    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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40% more Medicare Part D claims than the average internal medicine physician in 2024

4,458 Medicare Part D claims for 423 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Julia Motherway4,458
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium331 claims
  2. Levothyroxine Sodium293 claims
  3. Rosuvastatin Calcium188 claims
  4. Lisinopril160 claims
  5. Losartan Potassium150 claims
  6. Amlodipine Besylate128 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.

The MIPS final score for 2023 (Medicare payment program): 99.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score99.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $476.73

21 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Julia Motherway$476.73
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Tustin Irvine Internal Medicine Group Inc.Tustin, CA

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

Julia Collins Motherway among 17,696 internal medicine physician records in California

Julia Collins Motherway, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1994 · median 2004 among the 11,065 with a school on file
  • Record last updated2009 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

34 internal medicine physician records list a practice address in Tustin

They are 34 of the 2,221 NPPES records with a practice address in Tustin, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mohamed Al-Sadek, M.D.Tustin, CA 927801154353829
  2. Susan Ban, M.D.Tustin, CA 927801053324970
  3. Bernard Bennett, MDTustin, CA 927801871568899
  4. Jacqueline Do, M.D.Tustin, CA 927801689646952
  5. Huong Duong, M.D.Tustin, CA 927801013020437
  6. Daniel Eichinger, DOTustin, CA 927801598724015
  7. Pin-Hung Hsieh, M.D.Tustin, CA 927801144323064
  8. Thomas Hwang, M.D.Tustin, CA 927801124039722

Common questions

What is Julia Collins Motherway, M.D.'s NPI number?

Julia Collins Motherway, M.D.'s National Provider Identifier (NPI) is 1962544494, issued on Feb 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Julia Collins Motherway, M.D. located?

The NPPES record lists a practice address at 17400 Irvine Blvd, Tustin, CA, 92780. Phone: (714) 838-5610. Providers update this record themselves, so call before visiting.

How can I verify Julia Collins Motherway, M.D.'s license?

NPPES lists California license number A061483, 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 Julia Collins Motherway, M.D. prescribe under Medicare Part D?

In 2024, Julia Collins Motherway, M.D. had 4,458 Medicare Part D claims for 423 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Julia Collins Motherway, M.D.'s MIPS final score?

The 2023 MIPS final score is 99.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.