Dr. Nicholas T. Welch, MD
- Part D claims, 2024
- 34
- Industry payments
- $410
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 900 E Hamilton Ave, Campbell, CA 95008
- Practice phone
- Call (469) 466-7007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Signify Health
Campbell, California
Find Dr. Welch'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. Nicholas T. Welch is a general practice physician in Campbell, California
Dr. Welch practices at Signify Health in Campbell, California.
Dr. Welch's NPI, 1659787414, was assigned on July 1, 2014. Dr. Welch holds Ohio license 35.138592.
- NPI
- 1659787414NPI Registry (opens in a new tab)
- NPI enumeration date
- July 1, 2014
- NPI status
- Active
- Practice phone
- (469) 466-7007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Nicholas T. Welch practices at Signify Health in Campbell, California
Dr. Welch's primary practice is Signify Health, at 900 E Hamilton Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (469) 466-7007.
- Signify Health900 E Hamilton Ave, Campbell, CA 95008 · Santa Clara CountyPhone(469) 466-7007
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicholas T. Welch is affiliated with 2 sites of care and 2 medical groups
Dr. Welch's primary practice is Signify Health in Campbell, California. The medical group on file is Signify Health. Dmand AI also links Dr. Welch to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nicholas T. Welch's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Welch practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signify Health | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas T. Welch is one of 1,526 general practice physicians in California
General practice is Dr. Welch's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Welch is licensed in Ohio.
Specialties and state licenses
- General practice, OhioPrimary
General practice physicians near Dr. Welch
Counts of general practice 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. Nicholas T. Welch's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Welch's median patient age at 73, with 49% women.
Dr. Welch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women49%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Nicholas T. Welch wrote 34 Medicare Part D claims in 2024
In 2024, Dr. Welch wrote 34 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $1,733 in total drug cost.
Dr. Welch'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.
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. Nicholas T. Welch received $410 in industry payments from 2023 to 2025
CMS Open Payments shows 4 general payments to Dr. Welch from 3 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $159.
General payments to Dr. Welch by program year, 2023 to 2025
Companies that paid Dr. Welch the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas T. Welch'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| 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. Nicholas T. Welch
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. Nicholas T. Welch's NPI number?
Dr. Nicholas T. Welch's NPI number is 1659787414. It was assigned on July 1, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas T. Welch?
Dr. Nicholas T. Welch is a general practice physician in Campbell, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Nicholas T. Welch practice?
Dr. Welch practices at 900 E Hamilton Ave, Campbell, CA 95008. Dr. Welch's primary practice is Signify Health in Campbell, California. Dmand AI also links Dr. Welch to 1 group practice or clinic and 1 medical group.
What is Dr. Nicholas T. Welch's office phone number?
The practice phone on file for Dr. Welch is (469) 466-7007.
What is Dr. Nicholas T. Welch's medical license number?
Dr. Welch holds Ohio license 35.138592.
What medical group is Dr. Nicholas T. Welch part of?
Dr. Welch is linked to Signify Health. Dmand AI links Dr. Welch to 1 more medical group.
What drugs does Dr. Nicholas T. Welch prescribe most?
In 2024 Medicare Part D data, Dr. Welch's most prescribed drugs by claims were Buprenorphine-Naloxone.
Has Dr. Nicholas T. Welch received payments from drug or device companies?
CMS Open Payments shows $410 in general payments to Dr. Welch from 3 companies from 2023 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Nicholas T. Welch been practicing?
Dr. Welch's NPI was assigned in 2014.
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