Cassandra Heller, DO
Family Medicine Physician · Healdsburg, CA
Cassandra Heller, DO is a family medicine physician with a practice address in Healdsburg, California, and NPI 1043570708, issued on May 29, 2012. Check the license (California 20A15448, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cassandra Heller
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A15448 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1381 University St, Healdsburg, CA 95448
- Phone
- (707) 433-5494
- Enumerated
- May 29, 2012
- Record last updated
- Sep 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (707) 385-2157
- Medicare enrollment
- Enrolled (PECOS I20171114003070); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2012
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1381 University St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juana Alvarez, NPNurse Practitioner1518049659
- Gerardo Amador, DDSDentist1780742361
- Seth Ammerman, MDPediatric Adolescent Medicine Physician1831290154
- Robert Azcarraga, MDFamily Medicine Physician1477548709
- Christopher Barker, MDFamily Medicine Physician1619029840
- Barbara Boylan, MDCardiovascular Disease Physician1013091081
Verify Cassandra Heller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15448Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family medicine physician in 2024
1,384 Medicare Part D claims for 220 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 59 claims were for opioids.
Most prescribed
- Atorvastatin Calcium56 claims
- Metformin Hcl51 claims
- Amlodipine Besylate50 claims
- Levothyroxine Sodium41 claims
- Gabapentin37 claims
- Losartan Potassium37 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.
Bills Medicare through one group practice
- Alliance Medical CenterHealdsburg, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassandra Heller among 17,133 family medicine physician records in California
Cassandra Heller, DO 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 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2012 · median 2005 among the 10,652 with a school on file
- Record last updated2019 · 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).
27 family medicine physician records list a practice address in Healdsburg
They are 27 of the 226 NPPES records with a practice address in Healdsburg, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Healdsburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Andolsen, MDHealdsburg, CA 954481376533638
- Robert Azcarraga, MDHealdsburg, CA 954481477548709
- Mary Berg, MDHealdsburg, CA 954481487724290
- Maria Garcia, MDHealdsburg, CA 954481073500732
- Andre Gerard, MDHealdsburg, CA 954481891722500
- Walter Maack, M.D.Healdsburg, CA 954481588765416
- Jeffrey Meckler, MDHealdsburg, CA 954481316932635
- Thomas Neal, M.D.Healdsburg, CA 954481649298910
Common questions
What is Cassandra Heller, DO's NPI number?
Cassandra Heller, DO's National Provider Identifier (NPI) is 1043570708, issued on May 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Heller, DO located?
The NPPES record lists a practice address at 1381 University St, Healdsburg, CA, 95448. Phone: (707) 433-5494. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Heller, DO's license?
NPPES lists California license number 20A15448, 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 Cassandra Heller, DO prescribe under Medicare Part D?
In 2024, Cassandra Heller, DO had 1,384 Medicare Part D claims for 220 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.
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.