Robert Michael Tieri, OD
- Medicare patients, 2024
- 123
- Industry payments
- $50
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 200 Groton Rd, Ayer, MA 01432
- Practice phone
- Call (978) 784-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nashoba Valley Medical Center (CLOSED)
Ayer, Massachusetts
Find Robert Tieri'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.
Robert Michael Tieri is an optometrist in Ayer, Massachusetts
Robert Tieri practices at Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts.
Robert Tieri's NPI, 1427038835, was assigned on January 20, 2006. Robert Tieri graduated from New England College of Optometry in 1982. Robert Tieri holds Massachusetts license 3015.
- NPI
- 1427038835NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577695907
- NPI enumeration date
- January 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 784-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert Michael Tieri practices at Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts
Robert Tieri's primary practice is Nashoba Valley Medical Center (CLOSED), at 200 Groton Rd, Ayer, MA 01432 in Middlesex County. The practice phone is (978) 784-9000.
- Nashoba Valley Medical Center (CLOSED)200 Groton Rd, Ayer, MA 01432 · Middlesex CountyPhone(978) 784-9000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Robert Michael Tieri is affiliated with 2 sites of care and 1 medical group
Robert Tieri's primary practice is Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts. Dmand AI also links Robert Tieri to 1 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 Robert Michael Tieri's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert Tieri practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nashoba Valley Medical Center (CLOSED) | 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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Robert Michael Tieri is one of 1,098 optometrists in Massachusetts
Optometrist is Robert Tieri's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Robert Tieri is licensed in Massachusetts.
Specialties and state licenses
- Optometrist, MassachusettsPrimary
Optometrists near Robert Tieri
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
Robert Michael Tieri treated 123 Medicare patients in 2024, average age 74
CMS counts 123 Medicare patients who saw Robert Tieri in 2024. The largest group is 65 to 74, with 67 patients. 59% of them have high cholesterol, and 50% have high blood pressure. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Robert Tieri's median patient age at 66, with 51% women.
Robert Tieri's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Robert Tieri's Medicare patients by sex, 2024
- Women6754%
- Men5646%
Chronic conditions among Robert Tieri's Medicare patients, 2024
- High cholesterol59%
- High blood pressure50%
- Arthritis33%
- Mood disorders19%
- Diabetes18%
- Ischemic heart disease16%
- Anxiety15%
- Depression15%
Share of Medicare patients with each condition. A patient can have several.
Robert Tieri's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Robert Michael Tieri takes part in Medicare
Robert Tieri 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)
Robert Michael Tieri received $50 in industry payments in 2025
CMS Open Payments shows 2 general payments to Robert Tieri from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $30.
Companies that paid Robert Tieri the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Robert Michael Tieri graduated from New England College of Optometry
Robert Tieri graduated from New England College of Optometry in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Robert Michael Tieri'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 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 Robert Michael Tieri
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Robert Michael Tieri's NPI number?
Robert Michael Tieri's NPI number is 1427038835. It was assigned on January 20, 2006, and it is active in the NPI Registry.
What does Robert Michael Tieri specialize in?
Robert Michael Tieri is an optometrist in Ayer, Massachusetts. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Robert Michael Tieri practice?
Robert Tieri practices at 200 Groton Rd, Ayer, MA 01432. Robert Tieri's primary practice is Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts. Dmand AI also links Robert Tieri to 1 group practice or clinic and 1 medical group.
What is Robert Michael Tieri's office phone number?
The practice phone on file for Robert Tieri is (978) 784-9000.
What is Robert Michael Tieri's medical license number?
Robert Tieri holds Massachusetts license 3015.
Does Robert Michael Tieri accept Medicare?
Yes. CMS lists Robert Tieri as accepting Medicare assignment.
How many Medicare patients does Robert Michael Tieri see?
CMS counts 123 Medicare patients who saw Robert Tieri in 2024, with an average age of 74.
Where did Robert Michael Tieri go to medical school?
Robert Tieri graduated from New England College of Optometry in 1982.
Has Robert Michael Tieri received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Robert Tieri from 2 companies from 2025 to 2025. The largest total came from Genentech, Inc.
How long has Robert Michael Tieri been practicing?
Robert Tieri graduated from medical school in 1982, 44 years ago.
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