Dr. Leah Tessler, MD
- Medicare services, 2023
- 474
- Part D claims, 2024
- 51
- Hospital affiliations
- 1
- Industry payments
- $712
- Insurance carriers
- 4
- Practice address
- 2450 Ashby Avenue, Berkeley, CA 94705
- Practice phone
- Call (510) 204-4444
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tessler's professional email, personal email and mobile number
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Dr. Leah Tessler is an internist in Berkeley, California
Dr. Tessler practices at Alta Bates Summit Medical Center | Alta Bates Campus in Berkeley, California, part of Sutter Health.
Dr. Tessler's NPI, 1437111275, was assigned on April 5, 2006. Dr. Tessler graduated from McGill University Faculty of Medicine in 1992. Dr. Tessler's California license number on file is A52654.
- NPI
- 1437111275NPI Registry (opens in a new tab)
- NPI enumeration date
- April 5, 2006
- NPI status
- Active
- Practice phone
- (510) 204-4444
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Leah Tessler practices at Alta Bates Summit Medical Center | Alta Bates Campus in Berkeley, California
Dr. Tessler's primary practice is Alta Bates Summit Medical Center | Alta Bates Campus, at 2450 Ashby Avenue, Berkeley, CA 94705 in Alameda County. The practice phone is (510) 204-4444.
- Alta Bates Summit Medical Center | Alta Bates Campus2450 Ashby Avenue, Berkeley, CA 94705 · Alameda CountyPhone(510) 204-4444
Source: Dmand AI Affiliation Data
Dr. Leah Tessler is affiliated with 1 site of care
Dr. Tessler's primary practice is Alta Bates Summit Medical Center | Alta Bates Campus in Berkeley, California, part of Sutter Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Leah Tessler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tessler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alta Bates Summit Medical Center | Alta Bates Campus | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leah Tessler is one of 16,751 internists in California
Internal medicine is Dr. Tessler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tessler is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tessler has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, asthma, atrial fibrillation and flutter, cardiomyopathy, carpal tunnel syndrome, chronic anemia, chronic diabetes and chronic hypertension among the conditions Dr. Tessler treats.
Internists near Dr. Tessler
Counts of internists 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. Leah Tessler billed Medicare for 474 services in 2023
CMS data shows 474 Medicare services from Dr. Tessler across 11 procedure codes in 2023. Medicare paid $35,563 for them. Every service was in an office.
Dr. Tessler's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 7412023: 28462%
- Other services
- 2022: 4502023: 15665%
- Tests and treatments
- 2022: 1742023: 3480%
Dr. Tessler compared with the California median for internists, 2023
- Dr. Tessler
- California median
- Medicare services
- 474vs 36131% above
- Part D claims
- 509vs 42121% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Tessler's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Tessler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tessler and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leah Tessler's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Tessler's median patient age at 61, with 77% women.
Dr. Tessler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women77%
- Men16%
Source: Dmand AI Patient Panel Data
Dr. Leah Tessler wrote 51 Medicare Part D claims in 2024
In 2024, Dr. Tessler wrote 51 Medicare Part D claims for 29 patients. 84% of them were for generic drugs. They cover 23 drugs, with $9,081 in total drug cost. In 2022, CMS named 465 claims across 22 drugs.
Dr. Tessler's Part D claims by kind of drug, 2024
- Generic43 claims84%
- Brand-name and other8 claims16%
Dr. Tessler's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 4652023: 5099%
Drugs named by CMS: 23 in 2023, 22 in 2022.
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. Leah Tessler received $712 in industry payments from 2016 to 2023
CMS Open Payments shows 33 general payments to Dr. Tessler from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 97% of the total. Abbvie Inc. paid the most, $191.
General payments to Dr. Tessler by program year, 2016 to 2023
General payments to Dr. Tessler by kind, 2016 to 2023
- Food and beverage$69197%
- Education$213%
Companies that paid Dr. Tessler the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leah Tessler has 1 award and honors on record
Dmand AI lists 1 award for Dr. Tessler, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Tessler
- 2012
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Leah Tessler graduated from McGill University Faculty of Medicine
Dr. Tessler graduated from McGill University Faculty of Medicine in 1992.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Leah Tessler accepts plans from 4 insurance carriers
Dr. Tessler is in network with 4 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Tessler accepts, by number of carriers
- PPO4
- Medicare3
- EPO2
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Leah Tessler'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 Data |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Leah Tessler
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. Leah Tessler's NPI number?
Dr. Leah Tessler's NPI number is 1437111275. It was assigned on April 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leah Tessler?
Dr. Leah Tessler is an internist in Berkeley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Leah Tessler practice?
Dr. Tessler practices at 2450 Ashby Avenue, Berkeley, CA 94705. Dr. Tessler's primary practice is Alta Bates Summit Medical Center | Alta Bates Campus in Berkeley, California, part of Sutter Health.
What is Dr. Leah Tessler's office phone number?
The practice phone on file for Dr. Tessler is (510) 204-4444.
What is Dr. Leah Tessler's medical license number?
Dr. Tessler's California license number on file is A52654.
Which hospitals is Dr. Leah Tessler affiliated with?
Dr. Tessler practices at Alta Bates Summit Medical Center | Alta Bates Campus in Berkeley, California.
Does Dr. Leah Tessler accept Medicare?
Yes. CMS data shows Dr. Tessler billed Medicare for 474 services in 2023.
Is Dr. Leah Tessler board certified?
Yes. Dr. Tessler is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Leah Tessler bill to Medicare?
In 2023, Dr. Tessler's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and office visit, established patient (99214).
Where did Dr. Leah Tessler go to medical school?
Dr. Tessler graduated from McGill University Faculty of Medicine in 1992.
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What drugs does Dr. Leah Tessler prescribe most?
In 2023 Medicare Part D data, Dr. Tessler's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Leah Tessler received payments from drug or device companies?
CMS Open Payments shows $712 in general payments to Dr. Tessler from 18 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Leah Tessler been practicing?
Dr. Tessler graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Leah Tessler accept?
Dr. Tessler is in network with 4 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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