Dr. Thomas E. Connolly, MD

  • Walnut Creek, CA
  • Internist
NPI1750469821
Part D claims, 2024
240
Affiliated sites
1
Medical group
1
State license
1
Year NPI issued
2006
Practice address
320 Lennon Ln, Walnut Creek, CA 94598-2419
Practice phone
Call (209) 476-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Permanente Medical Group - Walnut Creek (320 Lennon Ln)

Multi-specialty group site · Walnut Creek, California

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Dr. Thomas E. Connolly is an internist in Walnut Creek, California

Dr. Connolly practices at Permanente Medical Group - Walnut Creek (320 Lennon Ln) in Walnut Creek, California.

Dr. Connolly's NPI, 1750469821, was assigned on November 2, 2006. Dr. Connolly graduated from UC Irvine School of Medicine in 1989. Dr. Connolly holds California license G70026.

NPI and contact details
NPI enumeration date
November 2, 2006
NPI status
Active
Practice phone
(209) 476-2000
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1989

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Thomas E. Connolly practices at 2 locations in Walnut Creek, California

Dr. Connolly's primary practice is Permanente Medical Group - Walnut Creek (320 Lennon Ln), at 320 Lennon Ln, Walnut Creek, CA 94598-2419. The practice phone is (209) 476-2000. The NPI Registry lists Dr. Connolly's practice address as 1425 S Main St, Walnut Creek, CA 94596.

  • Permanente Medical Group - Walnut Creek (320 Lennon Ln)Primary
    320 Lennon Ln, Walnut Creek, CA 94598-2419Phone(209) 476-2000
  • NPI Registry address
    1425 S Main St, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 906-2000

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data

Dr. Thomas E. Connolly is affiliated with 1 site of care and 1 medical group

Dr. Connolly's primary practice is Permanente Medical Group - Walnut Creek (320 Lennon Ln) in Walnut Creek, California. The medical group on file is The Permanente Medical Group, Inc.

Permanente Medical Group - Walnut Creek (320 Lennon Ln)Multi-specialty group site · Walnut Creek, CaliforniaPrimary
The Permanente Medical Group, Inc.Primary care group, Pleasanton, CA

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Thomas E. Connolly's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Connolly practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Permanente Medical Group - Walnut Creek (320 Lennon Ln)Available with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas E. Connolly is one of 16,751 internists in California

Internal medicine is Dr. Connolly's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Connolly is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G70026 · 1990 to 2026 · taxonomy 207R00000X

Internists near Dr. Connolly

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. Thomas E. Connolly's patients have a median age of 84

Across all payers, Dmand AI patient panel data puts Dr. Connolly's median patient age at 84, with 77% women.

Dr. Connolly's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 84

Patient panel by sex, all payers

  • Women77%
  • Men23%

Source: Dmand AI Patient Panel Data

Dr. Thomas E. Connolly wrote 240 Medicare Part D claims in 2024

In 2024, Dr. Connolly wrote 240 Medicare Part D claims for 20 patients. 77% of them were for generic drugs. CMS names the drug for 129 of them, across 7 drugs with 11 or more claims each, at $4,284 in total drug cost. In 2023, CMS named 252 claims across 14 drugs.

Part D claims, 2024240
Drugs named by CMS7
Total drug cost$4,284
Part D patients20

Dr. Connolly's Part D claims by kind of drug, 2024

  • Generic185 claims77%
  • Brand-name55 claims23%

Dr. Connolly'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. Connolly's Part D claims, 2024

  • Antibiotics11%26 of 240 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: 2522024: 12949%

Drugs named by CMS: 7 in 2024, 14 in 2023.

See all prescribing by Dr. Connolly

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. Thomas E. Connolly graduated from UC Irvine School of Medicine

Dr. Connolly graduated from UC Irvine School of Medicine in 1989.

  1. Medical schoolUC Irvine School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas E. Connolly'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
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)
Training, board certification and membershipsDmand AI Professional Profile 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. Thomas E. Connolly

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. Thomas E. Connolly's NPI number?

Dr. Thomas E. Connolly's NPI number is 1750469821. It was assigned on November 2, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas E. Connolly?

Dr. Thomas E. Connolly is an internist in Walnut Creek, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Thomas E. Connolly practice?

Dr. Connolly practices at 320 Lennon Ln, Walnut Creek, CA 94598-2419. Dr. Connolly also practices at 1425 S Main St, Walnut Creek, CA 94596. Dr. Connolly's primary practice is Permanente Medical Group - Walnut Creek (320 Lennon Ln) in Walnut Creek, California.

What is Dr. Thomas E. Connolly's office phone number?

The practice phone on file for Dr. Connolly is (209) 476-2000.

What is Dr. Thomas E. Connolly's medical license number?

Dr. Connolly holds California license G70026.

What medical group is Dr. Thomas E. Connolly part of?

Dr. Connolly is linked to The Permanente Medical Group, Inc.

Where did Dr. Thomas E. Connolly go to medical school?

Dr. Connolly graduated from UC Irvine School of Medicine in 1989.

What drugs does Dr. Thomas E. Connolly prescribe most?

In 2024 Medicare Part D data, Dr. Connolly's most prescribed drugs by claims were Humulin N, Atorvastatin Calcium and Clopidogrel.

How long has Dr. Thomas E. Connolly been practicing?

Dr. Connolly graduated from medical school in 1989, 37 years ago.

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