NPPES file of Aug 9, 2026

Natalie Maclean, MD, MSC, FRCPC

Rheumatology Physician · Encinitas, CA

Natalie Maclean, MD, MSC, FRCPC is a rheumatology physician with a practice address in Encinitas, California, and NPI 1316429244, issued on Sep 6, 2018. Check the license (California A157760, 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
1316429244
Name
Natalie Maclean
Credential
MD, MSC, FRCPC
Primary taxonomy
Rheumatology Physician 207RR0500X
License numbers
A157760 CA
019636 ZZ
Self-reported in NPPES; status is on the state search
Practice location
345 Saxony RD Ste 105, Encinitas, CA 92024
Phone
(760) 753-7374
Enumerated
Sep 6, 2018
Record last updated
Sep 7, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(760) 753-0110
Medicare enrollment
Enrolled (PECOS I20181206002182); 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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Also registered at 345 Saxony RD Ste 105

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

  1. Christine Wong, PA-CPhysician Assistant1609432665

Verify Natalie Maclean in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A157760
    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

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68% fewer Medicare Part D claims than the average rheumatology physician in 2024

631 Medicare Part D claims for 148 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Natalie Maclean631
  2. Specialty average1,978

Most prescribed

  1. Prednisone121 claims
  2. Methotrexate85 claims
  3. Leucovorin Calcium64 claims
  4. Hydroxychloroquine Sulfate60 claims
  5. Otezla51 claims
  6. Gabapentin26 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 practice group's MIPS final score for 2023 (Medicare payment program): 95 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score90.0
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,154.61

76 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Natalie Maclean$2,154.61
  2. Specialty average$8,538.33

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. Natalie Maclean MD A Professional CorporationEncinitas, CA

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

Natalie Maclean among 926 rheumatology physician records in California

Natalie Maclean, MD, MSC, FRCPC is one of 926 rheumatology 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 2018, is newer than 90% of them.

  • NPI issued2018 · 90% of these records are older, 7% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2010 · median 2003 among the 641 with a school on file
  • Record last updated2018 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Vikram Garg, MDEncinitas, CA 920241396060869
  2. Kathleen Judd, M.D.Encinitas, CA 920241821184763
  3. Roy Kaplan, M.D.Encinitas, CA 920241215962451
  4. Peter Lloyd, M.D.Encinitas, CA 920241962717918
  5. Phildrich Teh, M.D., M.S.Encinitas, CA 920241265895114
  6. Tania Rivera, M.D.Escondido, CA 920251336346972
  7. Swapna Busa, M.DEl Cajon, CA 920201841592763
  8. Hailey Baker, MDEscondido, CA 920291558927947

Common questions

What is Natalie Maclean, MD, MSC, FRCPC's NPI number?

Natalie Maclean, MD, MSC, FRCPC's National Provider Identifier (NPI) is 1316429244, issued on Sep 6, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Natalie Maclean, MD, MSC, FRCPC located?

The NPPES record lists a practice address at 345 Saxony RD Ste 105, Encinitas, CA, 92024. Phone: (760) 753-7374. Providers update this record themselves, so call before visiting.

How can I verify Natalie Maclean, MD, MSC, FRCPC's license?

NPPES lists California license number A157760, 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 Natalie Maclean, MD, MSC, FRCPC prescribe under Medicare Part D?

In 2024, Natalie Maclean, MD, MSC, FRCPC had 631 Medicare Part D claims for 148 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is Natalie Maclean, MD, MSC, FRCPC's MIPS final score?

The 2023 MIPS final score is 95 of 100, reported for the practice group. 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.