Heather Marie Elliott Demars, PA-C
Physician Assistant · Discovery Bay, CA
Heather Marie Elliott Demars, PA-C is a physician assistant with a practice address in Discovery Bay, California, and NPI 1891017125, issued on Mar 1, 2010. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heather Marie Elliott Demars
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA-261 ME
Self-reported in NPPES; status is on the state search - Practice location
- 3495 Keystone Loop, Discovery Bay, CA 94505
- Phone
- (603) 959-8758
- Enumerated
- Mar 1, 2010
- Record last updated
- Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121130000034); accepts Medicare assignment
- Entity
- Type 1 · individual
Verify Heather Marie Elliott Demars in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average physician assistant in 2024
283 Medicare Part D claims for 224 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin50 claims
- Azithromycin45 claims
- Amoxicillin-Clavulanate Potass37 claims
- Prednisone22 claims
- Albuterol Sulfate Hfa16 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: $19.83
1 payment: food and beverage; the largest payer was Grifols USA, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Pleasanton Emergency Medical GroupLivermore, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 physician assistant records list a practice address in Discovery Bay
They are 1 of the 47 NPPES records with a practice address in Discovery Bay, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Discovery Bay →
Other physician assistant records in California
- Marcia -Galbraith, PAStockton, CA1407143274
- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Heather Marie Elliott Demars, PA-C's NPI number?
Heather Marie Elliott Demars, PA-C's National Provider Identifier (NPI) is 1891017125, issued on Mar 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Heather Marie Elliott Demars, PA-C located?
The NPPES record lists a practice address at 3495 Keystone Loop, Discovery Bay, CA, 94505. Phone: (603) 959-8758. Providers update this record themselves, so call before visiting.
How can I verify Heather Marie Elliott Demars, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Heather Marie Elliott Demars, PA-C prescribe under Medicare Part D?
In 2024, Heather Marie Elliott Demars, PA-C had 283 Medicare Part D claims for 224 beneficiaries; the average among physician assistant prescribers was 830. 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.
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.