Dr. Erica E. Weirich, MD

  • Los Altos, CA
  • Family medicine physician
NPI1700978400PAC ID7113086885
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
Social profiles

Primary practice

Los Altos Center Imaging

Mammography / Breast Imaging Center · Los Altos, California

See all 5 affiliations

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.

View contacts for free

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 and contact details
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 Imaging
    370 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.

See all 5 affiliations for Dr. Weirich

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.

EHR by site
SiteEHR vendor and product
Los Altos Center ImagingAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Weirich practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

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, CaliforniaPrimaryLicense A70387 · 1999 to 2027 · taxonomy 207Q00000X

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.

Medicare services, 2024443
Medicare patients105
Paid by Medicare$47,584
Procedure codes7

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.

See all procedures by Dr. Weirich

Need commercial claims for Dr. Weirich?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weirich and other family medicine physicians in California.

Book a meeting

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.

Medicare patients, 2024105
Average age78
Average risk score1.02

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

  1. High cholesterol67%
  2. High blood pressure60%
  3. Arthritis49%
  4. Ischemic heart disease29%
  5. Cancer24%
  6. Anxiety20%
  7. Osteoporosis19%
  8. 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.

Part D claims, 20241,359
Drugs named by CMS43
Total drug cost$55,945
Part D patients117

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.

See all prescribing by Dr. Weirich

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)

For MedTech and pharma teams

Find family medicine physicians like Dr. Weirich by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

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.

See all payments to Dr. Weirich

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.

  1. Medical schoolStanford University School Of Medicine

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

  1. PPO7
  2. HMO6
  3. EPO4
  4. Medicare3
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Erica E. Weirich's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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.

Selling to family medicine practices?

See family medicine physicians in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)