Dr. Edwin V. Tan, MD
- Medicare services, 2024
- 577
- Medicare patients, 2024
- 175
- Part D claims, 2024
- 9,778
- MIPS score, 2024
- 98
- Hospital affiliations
- 2
- Practice address
- 93 Campus Ave, Lewiston, ME 04240
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Mary's Regional Medical Center - HOPD
Acute Care Hospital outpatient department · Lewiston, Maine
Find Dr. Tan's professional email, personal email and mobile number
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Dr. Edwin V. Tan is an internist in Lewiston, Maine
Dr. Tan practices at St Mary's Regional Medical Center - HOPD in Lewiston, Maine.
Dr. Tan's NPI, 1629074240, was assigned on June 28, 2005. Dr. Tan holds Maine license MD14191.
- NPI
- 1629074240NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325011950
- NPI enumeration date
- June 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Edwin V. Tan practices at St Mary's Regional Medical Center - HOPD in Lewiston, Maine
Dr. Tan's primary practice is St Mary's Regional Medical Center - HOPD, at 93 Campus Ave, Lewiston, ME 04240.
- St Mary's Regional Medical Center - HOPD93 Campus Ave, Lewiston, ME 04240
Source: Dmand AI Affiliation Data
Dr. Edwin V. Tan is affiliated with 7 sites of care and 2 medical groups
Dr. Tan's primary practice is St Mary's Regional Medical Center - HOPD in Lewiston, Maine. Dr. Tan is also affiliated with St. Mary's Regional Medical Center. The medical group on file is Select Physical Therapy. Dmand AI also links Dr. Tan to 1 more hospital, 1 community health center, 1 home health agency, 1 hospice, 1 hospital outpatient department and 1 medical group, each named with a free account. Dr. Tan's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Edwin V. Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Mary's Regional Medical Center - HOPD | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Edwin V. Tan is one of 572 internists in Maine
Internal medicine is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tan is licensed in Maine.
Specialties and state licenses
- Internal medicine, MainePrimary
Internists near Dr. Tan
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. Edwin V. Tan billed Medicare for 577 services in 2024
CMS data shows 577 Medicare services from Dr. Tan across 6 procedure codes in 2024, for 175 Medicare patients. Medicare paid $36,959 for them. Every service was in an office.
Dr. Tan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3952024: 4012%
- Other services
- 2023: 902024: 17696%
Dr. Tan compared with the Maine median for internists, 2024
- Dr. Tan
- Maine median
- Medicare services
- 577vs 31484% above
- Medicare patients
- 175vs 15414% above
- Part D claims
- 8,871vs 21142.0 times
Medians across 600 internists in Maine with Dmand AI profiles that report each measure.
Dr. Tan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Edwin V. Tan treated 175 Medicare patients in 2024, average age 70
CMS counts 175 Medicare patients who saw Dr. Tan in 2024. The largest group is 65 to 74, with 57 patients. 62% of them have high cholesterol, and 61% have high blood pressure. 49% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 64, with 51% women.
Dr. Tan's Medicare patients by age, 2024
Dr. Tan's Medicare patients by sex, 2024
- Women8347%
- Men9253%
Chronic conditions among Dr. Tan's Medicare patients, 2024
- High cholesterol62%
- High blood pressure61%
- Anxiety34%
- Diabetes30%
- Mood disorders28%
- Arthritis27%
- Depression25%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Edwin V. Tan wrote 9,778 Medicare Part D claims in 2024
In 2024, Dr. Tan wrote 9,778 Medicare Part D claims for 624 patients. 86% of them were for generic drugs. CMS names the drug for 8,871 of them, across 143 drugs with 11 or more claims each, at $929,110 in total drug cost. In 2023, CMS named 8,456 claims across 152 drugs.
Dr. Tan's Part D claims by kind of drug, 2024
- Generic8,405 claims86%
- Brand-name1,281 claims13%
- Other92 claims1%
Dr. Tan'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. Tan's Part D claims, 2024
- Opioids2%201 of 9,778 claims
- Antibiotics1%126 of 9,778 claims
- Antipsychotics, patients 65 and over1%96 of 9,778 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: 8,4562024: 8,8715%
Drugs named by CMS: 143 in 2024, 152 in 2023.
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
Dr. Edwin V. Tan scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Tan for performance year 2024, reported through an alternative payment model (APM). Dr. Tan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Tan's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Edwin V. Tan received $8,116 in industry payments from 2016 to 2025
CMS Open Payments shows 501 general payments to Dr. Tan from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $1,421.
General payments to Dr. Tan by program year, 2016 to 2025
General payments to Dr. Tan by kind, 2016 to 2025
- Food and beverage$8,106100%
- Education$100%
Companies that paid Dr. Tan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Edwin V. Tan's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Edwin V. Tan
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. Edwin V. Tan's NPI number?
Dr. Edwin V. Tan's NPI number is 1629074240. It was assigned on June 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Edwin V. Tan?
Dr. Edwin V. Tan is an internist in Lewiston, Maine. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Edwin V. Tan practice?
Dr. Tan practices at 93 Campus Ave, Lewiston, ME 04240. Dr. Tan's primary practice is St Mary's Regional Medical Center - HOPD in Lewiston, Maine. Dmand AI also links Dr. Tan to 1 hospital, 1 community health center, 1 home health agency, 1 hospice, 1 hospital outpatient department and 1 medical group.
What is Dr. Edwin V. Tan's medical license number?
Dr. Tan holds Maine license MD14191.
Which hospitals is Dr. Edwin V. Tan affiliated with?
Dr. Tan is affiliated with St. Mary's Regional Medical Center. Dmand AI links Dr. Tan to 1 more hospital.
What medical group is Dr. Edwin V. Tan part of?
Dr. Tan is linked to Select Physical Therapy. Dmand AI links Dr. Tan to 1 more medical group.
Does Dr. Edwin V. Tan accept Medicare?
Yes. CMS data shows Dr. Tan billed Medicare for 577 services in 2024, and Dr. Tan accepts Medicare assignment.
Does Dr. Edwin V. Tan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tan as offering telehealth services.
What is Dr. Edwin V. Tan's MIPS score?
Dr. Tan's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Edwin V. Tan see?
CMS counts 175 Medicare patients who saw Dr. Tan in 2024, with an average age of 70.
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What services does Dr. Edwin V. Tan bill to Medicare?
In 2024, Dr. Tan's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).
What drugs does Dr. Edwin V. Tan prescribe most?
In 2024 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Levothyroxine Sodium.
Has Dr. Edwin V. Tan received payments from drug or device companies?
CMS Open Payments shows $8,116 in general payments to Dr. Tan from 39 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Edwin V. Tan been practicing?
Dr. Tan graduated from medical school in 1991, 35 years ago.
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