Dr. Erica E. Weirich, MD
- Medicare services, 2024
- 443
- Medicare patients, 2024
- 105
- Part D claims, 2024
- 1,359
- Hospital affiliations
- 1
- Industry payments
- $30
- Practice address
- 370 Distel Circle, Los Altos, CA 94022
- Practice phone
- Call (650) 254-5259
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Los Altos Center Imaging
Mammography / Breast Imaging Center · Los Altos, California
Find Dr. Weirich's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Erica E. Weirich is a family medicine physician in Los Altos, California
Dr. Weirich practices at Los Altos Center Imaging in Los Altos, California.
Dr. Weirich's NPI, 1700978400, was assigned on September 29, 2006. Dr. Weirich graduated from Stanford University School Of Medicine in 1998. Dr. Weirich holds California license A70387.
- NPI
- 1700978400NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113086885
- NPI enumeration date
- September 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 254-5259
- 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; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erica E. Weirich practices at Los Altos Center Imaging in Los Altos, California
Dr. Weirich's primary practice is Los Altos Center Imaging, at 370 Distel Circle, Los Altos, CA 94022. The practice phone is (650) 254-5259.
- Los Altos Center Imaging370 Distel Circle, Los Altos, CA 94022Phone(650) 254-5259
Source: Dmand AI Affiliation Data
Dr. Erica E. Weirich is affiliated with 4 sites of care and 1 medical group
Dr. Weirich's primary practice is Los Altos Center Imaging in Los Altos, California. Dr. Weirich is also affiliated with El Camino Health - Mountain View Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Weirich to 1 more group practice or clinic and 1 home health agency, each named with a free account. Dr. Weirich's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Erica E. Weirich's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weirich practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Altos Center Imaging | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Erica E. Weirich is one of 15,680 family medicine physicians in California
Family medicine is Dr. Weirich's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Weirich is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, adjustment disease, aneurysm, anxiety, asthma, atrial fibrillation and flutter, benign or precancerous skin growths and bronchitis among the conditions Dr. Weirich treats.
Family medicine physicians near Dr. Weirich
Counts of family medicine physicians 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. Erica E. Weirich billed Medicare for 443 services in 2024
CMS data shows 443 Medicare services from Dr. Weirich across 7 procedure codes in 2024, for 105 Medicare patients. Medicare paid $47,584 for them. Every service was in an office.
Dr. Weirich's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1902024: 28952%
- Other services
- 2023: 742024: 808%
- Tests and treatments
- 2023: 202024: 74270%
Dr. Weirich compared with the California median for family medicine physicians, 2024
- Dr. Weirich
- California median
- Medicare services
- 443vs 24680% above
- Medicare patients
- 105vs 11811% below
- Part D claims
- 930vs 83312% above
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Weirich'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weirich and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erica E. Weirich treated 105 Medicare patients in 2024, average age 78
CMS counts 105 Medicare patients who saw Dr. Weirich in 2024. The largest group is 75 to 84, with 47 patients. 67% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weirich's median patient age at 75, with 66% women.
Dr. Weirich's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Weirich's Medicare patients by sex, 2024
- Women7672%
- Men2928%
Chronic conditions among Dr. Weirich's Medicare patients, 2024
- High cholesterol67%
- High blood pressure60%
- Arthritis49%
- Ischemic heart disease29%
- Cancer24%
- Anxiety20%
- Osteoporosis19%
- Diabetes17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weirich's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erica E. Weirich wrote 1,359 Medicare Part D claims in 2024
In 2024, Dr. Weirich wrote 1,359 Medicare Part D claims for 117 patients. 84% of them were for generic drugs. CMS names the drug for 930 of them, across 43 drugs with 11 or more claims each, at $55,945 in total drug cost. In 2023, CMS named 938 claims across 42 drugs.
Dr. Weirich's Part D claims by kind of drug, 2024
- Generic1,140 claims84%
- Brand-name and other219 claims16%
Dr. Weirich'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. Weirich's Part D claims, 2024
- Opioids2%30 of 1,359 claims
- Antibiotics6%87 of 1,359 claims
- Antipsychotics, patients 65 and over1%15 of 1,359 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: 9382024: 9301%
Drugs named by CMS: 43 in 2024, 42 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
Dr. Erica E. Weirich ranks in the 71st percentile for removal of skin lesions in Medicare
Dr. Weirich accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Weirich as offering telehealth. CMS counts 44 procedures of removal of skin lesions by Dr. Weirich, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Weirich ranks in Medicare procedure volume
- Removal of skin lesions
- 71st percentile44 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Erica E. Weirich received $30 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Weirich from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $30.
Companies that paid Dr. Weirich the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Erica E. Weirich graduated from Stanford University School Of Medicine
Dr. Weirich graduated from Stanford University School Of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Erica E. Weirich accepts plans from 11 insurance carriers
Dr. Weirich is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Weirich accepts, by number of carriers
- PPO7
- HMO6
- EPO4
- Medicare3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Erica E. Weirich'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Erica E. Weirich
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. Erica E. Weirich's NPI number?
Dr. Erica E. Weirich's NPI number is 1700978400. It was assigned on September 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Erica E. Weirich?
Dr. Erica E. Weirich is a family medicine physician in Los Altos, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Erica E. Weirich practice?
Dr. Weirich practices at 370 Distel Circle, Los Altos, CA 94022. Dr. Weirich's primary practice is Los Altos Center Imaging in Los Altos, California. Dmand AI also links Dr. Weirich to 1 group practice or clinic and 1 home health agency.
What is Dr. Erica E. Weirich's office phone number?
The practice phone on file for Dr. Weirich is (650) 254-5259.
What is Dr. Erica E. Weirich's medical license number?
Dr. Weirich holds California license A70387.
Which hospitals is Dr. Erica E. Weirich affiliated with?
Dr. Weirich is affiliated with El Camino Health - Mountain View Hospital.
What medical group is Dr. Erica E. Weirich part of?
Dr. Weirich is linked to Palo Alto Foundation Medical Group.
Does Dr. Erica E. Weirich accept Medicare?
Yes. CMS data shows Dr. Weirich billed Medicare for 443 services in 2024, and Dr. Weirich accepts Medicare assignment.
Does Dr. Erica E. Weirich offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Weirich as offering telehealth services.
How many Medicare patients does Dr. Erica E. Weirich see?
CMS counts 105 Medicare patients who saw Dr. Weirich in 2024, with an average age of 78.
Show 6 more questionsShow fewer questions
What services does Dr. Erica E. Weirich bill to Medicare?
In 2024, Dr. Weirich's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0008).
Where did Dr. Erica E. Weirich go to medical school?
Dr. Weirich graduated from Stanford University School Of Medicine in 1998.
What drugs does Dr. Erica E. Weirich prescribe most?
In 2024 Medicare Part D data, Dr. Weirich's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Levothyroxine Sodium.
Has Dr. Erica E. Weirich received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Dr. Weirich from 1 company from 2016 to 2016. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Erica E. Weirich been practicing?
Dr. Weirich graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Erica E. Weirich accept?
Dr. Weirich is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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