Dr. Heather Maureen Lewerenz, MD
- Medicare services, 2024
- 349
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 136
- Hospital affiliations
- 1
- Industry payments
- $184
- Practice address
- 10 Woodland Road, Saint Helena, CA 94574
- Practice phone
- Call (707) 963-3611
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lewerenz's professional email, personal email and mobile number
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Dr. Heather Maureen Lewerenz is a psychiatrist in Saint Helena, California
Dr. Lewerenz practices at Adventist Health St. Helena in Saint Helena, California, part of Adventist Health.
Dr. Lewerenz's NPI, 1891902698, was assigned on May 17, 2007. Dr. Lewerenz holds California license C144761.
- NPI
- 1891902698NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2007
- NPI status
- Active
- Practice phone
- (707) 963-3611
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Heather Maureen Lewerenz practices at Adventist Health St. Helena in Saint Helena, California
Dr. Lewerenz's primary practice is Adventist Health St. Helena, at 10 Woodland Road, Saint Helena, CA 94574 in Napa County. The practice phone is (707) 963-3611.
- Adventist Health St. Helena10 Woodland Road, Saint Helena, CA 94574 · Napa CountyPhone(707) 963-3611
Source: Dmand AI Affiliation Data
Dr. Heather Maureen Lewerenz is affiliated with 1 site of care and 5 medical groups
Dr. Lewerenz's primary practice is Adventist Health St. Helena in Saint Helena, California, part of Adventist Health. The medical group on file is Adventist Health St. Helena. Dmand AI also links Dr. Lewerenz to 4 more medical groups, each named with a free account. Dr. Lewerenz's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Heather Maureen Lewerenz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lewerenz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health St. Helena | Available with a free account |
| +4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Heather Maureen Lewerenz is one of 6,803 psychiatrists in California
Psychiatry is Dr. Lewerenz's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Lewerenz's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- New York license
Psychiatrists near Dr. Lewerenz
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Heather Maureen Lewerenz billed Medicare for 349 services in 2024
CMS data shows 349 Medicare services from Dr. Lewerenz across 5 procedure codes in 2024, for 44 Medicare patients. Medicare paid $19,359 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lewerenz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1292024: 349171%
Dr. Lewerenz compared with the California median for psychiatrists, 2024
- Dr. Lewerenz
- California median
- Medicare services
- 349vs 1192.9 times
- Medicare patients
- 44vs 417% above
- Part D claims
- 25vs 14483% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Lewerenz's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Heather Maureen Lewerenz treated 44 Medicare patients in 2024, average age 59
CMS counts 44 Medicare patients who saw Dr. Lewerenz in 2024. The largest group is under 65, with 24 patients. 75% of them have anxiety, and 75% have mood disorders. 75% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lewerenz's median patient age at 68, with 0% women.
Dr. Lewerenz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lewerenz's Medicare patients by sex, 2024
- Women2250%
- Men2250%
Chronic conditions among Dr. Lewerenz's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- High blood pressure66%
- Depression59%
- Schizophrenia and other psychoses57%
- Alcohol and drug use disorders55%
- High cholesterol55%
- Tobacco use55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lewerenz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women0%
- Men100%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Heather Maureen Lewerenz wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Lewerenz wrote 136 Medicare Part D claims for 39 patients. 94% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $142 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Lewerenz's Part D claims by kind of drug, 2024
- Generic128 claims94%
- Brand-name and other8 claims6%
Dr. Lewerenz's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lewerenz's Part D claims, 2024
- Antipsychotics, patients 65 and over8%11 of 136 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 25127%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Heather Maureen Lewerenz received $184 in industry payments from 2017 to 2019
CMS Open Payments shows 12 general payments to Dr. Lewerenz from 5 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $87.
General payments to Dr. Lewerenz by program year, 2017 to 2019
Companies that paid Dr. Lewerenz the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Heather Maureen Lewerenz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Heather Maureen Lewerenz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Heather Maureen Lewerenz's NPI number?
Dr. Heather Maureen Lewerenz's NPI number is 1891902698. It was assigned on May 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Heather Maureen Lewerenz?
Dr. Heather Maureen Lewerenz is a psychiatrist in Saint Helena, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Heather Maureen Lewerenz practice?
Dr. Lewerenz practices at 10 Woodland Road, Saint Helena, CA 94574. Dr. Lewerenz's primary practice is Adventist Health St. Helena in Saint Helena, California, part of Adventist Health. Dmand AI also links Dr. Lewerenz to 4 medical groups.
What is Dr. Heather Maureen Lewerenz's office phone number?
The practice phone on file for Dr. Lewerenz is (707) 963-3611.
What is Dr. Heather Maureen Lewerenz's medical license number?
Dr. Lewerenz holds California license C144761, one of the licenses on file in 2 states.
Which states has Dr. Heather Maureen Lewerenz been licensed in?
Dmand AI has state licenses on file for Dr. Lewerenz in California and New York.
Which hospitals is Dr. Heather Maureen Lewerenz affiliated with?
Dr. Lewerenz practices at Adventist Health St. Helena in Saint Helena, California.
What medical group is Dr. Heather Maureen Lewerenz part of?
Dr. Lewerenz is linked to Adventist Health St. Helena. Dmand AI links Dr. Lewerenz to 4 more medical groups.
Does Dr. Heather Maureen Lewerenz accept Medicare?
Yes. CMS data shows Dr. Lewerenz billed Medicare for 349 services in 2024.
How many Medicare patients does Dr. Heather Maureen Lewerenz see?
CMS counts 44 Medicare patients who saw Dr. Lewerenz in 2024, with an average age of 59.
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What services does Dr. Heather Maureen Lewerenz bill to Medicare?
In 2024, Dr. Lewerenz's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99221).
What drugs does Dr. Heather Maureen Lewerenz prescribe most?
In 2024 Medicare Part D data, Dr. Lewerenz's most prescribed drugs by claims were Hydroxyzine HCl and Trazodone HCl.
Has Dr. Heather Maureen Lewerenz received payments from drug or device companies?
CMS Open Payments shows $184 in general payments to Dr. Lewerenz from 5 companies from 2017 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Heather Maureen Lewerenz been practicing?
Dr. Lewerenz graduated from medical school in 1998, 28 years ago.
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