Michael Thomas Tweed, OD
- Medicare patients, 2024
- 87
- Industry payments
- $108
- Affiliated sites
- 3
- Medical groups
- 2
- State license
- 1
- Practice address
- 699 8th St Ste 600, San Francisco, CA 94103
- Practice phone
- Call (415) 632-5700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
iRhythm
Imaging Center - Main Location · San Francisco, California
Find Michael Tweed'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.
Michael Thomas Tweed is an optometrist in San Francisco, California
Michael Tweed practices at iRhythm in San Francisco, California.
Michael Tweed's NPI, 1154456671, was assigned on February 23, 2007. Michael Tweed graduated from Illinois College of Optometry at Chicago in 1999.
- NPI
- 1154456671NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325121908
- NPI enumeration date
- February 23, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 632-5700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael Thomas Tweed practices at iRhythm in San Francisco, California
Michael Tweed's primary practice is iRhythm, at 699 8th St Ste 600, San Francisco, CA 94103. The practice phone is (415) 632-5700.
- iRhythm699 8th St Ste 600, San Francisco, CA 94103Phone(415) 632-5700
Source: Dmand AI Affiliation Data
Michael Thomas Tweed is affiliated with 3 sites of care and 2 medical groups
Michael Tweed's primary practice is iRhythm in San Francisco, California. Dmand AI also links Michael Tweed to 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael Thomas Tweed's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Tweed practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| iRhythm | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael Thomas Tweed is one of 7,206 optometrists in California
Optometrist is Michael Tweed's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Michael Tweed has a license on file in Illinois.
Specialties and state licenses
- Optometrist, Illinois
Optometrists near Michael Tweed
Counts of optometrists 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
Michael Thomas Tweed treated 87 Medicare patients in 2024, average age 74
CMS counts 87 Medicare patients who saw Michael Tweed in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Tweed's median patient age at 71, with 58% women.
Michael Tweed's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Michael Tweed's Medicare patients by sex, 2024
- Women4248%
- Men4552%
Chronic conditions among Michael Tweed's Medicare patients, 2024
- High cholesterol75%
- High blood pressure62%
- Arthritis45%
- Diabetes25%
- Anxiety20%
- Ischemic heart disease18%
- Mood disorders17%
- Osteoporosis17%
Share of Medicare patients with each condition. A patient can have several.
Michael Tweed's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Michael Thomas Tweed takes part in Medicare
Michael Tweed accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Michael Thomas Tweed received $108 in industry payments in 2025
CMS Open Payments shows 1 general payment to Michael Tweed from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $108.
Companies that paid Michael Tweed the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Michael Thomas Tweed graduated from Illinois College of Optometry at Chicago
Michael Tweed graduated from Illinois College of Optometry at Chicago in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Michael Thomas Tweed'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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Michael Thomas Tweed
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael Thomas Tweed's NPI number?
Michael Thomas Tweed's NPI number is 1154456671. It was assigned on February 23, 2007, and it is active in the NPI Registry.
What does Michael Thomas Tweed specialize in?
Michael Thomas Tweed is an optometrist in San Francisco, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Michael Thomas Tweed practice?
Michael Tweed practices at 699 8th St Ste 600, San Francisco, CA 94103. Michael Tweed's primary practice is iRhythm in San Francisco, California. Dmand AI also links Michael Tweed to 2 group practices and clinics and 2 medical groups.
What is Michael Thomas Tweed's office phone number?
The practice phone on file for Michael Tweed is (415) 632-5700.
Does Michael Thomas Tweed accept Medicare?
Yes. CMS lists Michael Tweed as accepting Medicare assignment.
How many Medicare patients does Michael Thomas Tweed see?
CMS counts 87 Medicare patients who saw Michael Tweed in 2024, with an average age of 74.
Where did Michael Thomas Tweed go to medical school?
Michael Tweed graduated from Illinois College of Optometry at Chicago in 1999.
Has Michael Thomas Tweed received payments from drug or device companies?
CMS Open Payments shows $108 in general payments to Michael Tweed from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Michael Thomas Tweed been practicing?
Michael Tweed graduated from medical school in 1999, 27 years ago.
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