NPPES file of Aug 9, 2026

Heather L. Lucas Ehmer, D.O.

Emergency Medicine Physician · Novato, CA

Heather L. Lucas Ehmer, D.O. is an emergency medicine physician with a practice address in Novato, California, and NPI 1558393678, issued on Jul 7, 2006. Check the license (California 20A10369, 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
1558393678
Name
Heather L. Lucas Ehmer
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
20A10369 CA
51010155775 MI
Self-reported in NPPES; status is on the state search
Practice location
180 Rowland Way, Novato, CA 94945
Phone
(415) 209-1350
Enumerated
Jul 7, 2006
Record last updated
Oct 7, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080530000602); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2003
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 180 Rowland Way

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

  1. Michael Abbo, MDEmergency Medicine Physician1205819042
  2. Jacob Adams, DOCritical Care Medicine (Internal Medicine) Physician1558595090
  3. Daniel Ames, M.D.Internal Medicine Physician1902162456
  4. Richard Bodony, MDEmergency Medicine Physician1225011422
  5. William Budge, M.D.Cardiovascular Disease Physician1326137464
  6. Crystal Chang, M.D.Diagnostic Radiology Physician1518253012

Verify Heather L. Lucas Ehmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10369
    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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91% fewer Medicare Part D claims than the average emergency medicine physician in 2024

20 Medicare Part D claims for 15 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Heather Lucas Ehmer20
  2. Specialty average226

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): 94.6 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 score76.7
  2. Costout of 100 · 30%97.1
  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).

Bills Medicare through one group practice

  1. Emergency Physicians Associates San Jose PCSan Jose, CA

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

Heather L. Lucas Ehmer among 7,751 emergency medicine physician records in California

Heather L. Lucas Ehmer, D.O. is one of 7,751 emergency 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2003 · median 2011 among the 4,560 with a school on file
  • Record last updated2014 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Michael Abbo, MDNovato, CA 949451205819042
  2. Richard Bodony, MDNovato, CA 949451225011422
  3. Wendy Cole, MDNovato, CA 949451366426637
  4. Timothy Gee, MDNovato, CA 949451952384695
  5. George Rygg, MDNovato, CA 949451487637518
  6. John Stein, MDNovato, CA 949451942284898
  7. Lauren Bence, M.D.Mill Valley, CA 949411336471697
  8. John Elliott, MDMill Valley, CA 949411043224280

Common questions

What is Heather L. Lucas Ehmer, D.O.'s NPI number?

Heather L. Lucas Ehmer, D.O.'s National Provider Identifier (NPI) is 1558393678, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather L. Lucas Ehmer, D.O. located?

The NPPES record lists a practice address at 180 Rowland Way, Novato, CA, 94945. Phone: (415) 209-1350. Providers update this record themselves, so call before visiting.

How can I verify Heather L. Lucas Ehmer, D.O.'s license?

NPPES lists California license number 20A10369, 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 Heather L. Lucas Ehmer, D.O. prescribe under Medicare Part D?

In 2024, Heather L. Lucas Ehmer, D.O. had 20 Medicare Part D claims for 15 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Heather L. Lucas Ehmer, D.O.'s MIPS final score?

The 2023 MIPS final score is 94.6 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.