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Dr. Amy L. Tien, MD
NPI1922033265PAC ID1456544360
- Medicare services, 2024
- 394
- Medicare patients, 2024
- 253
- Part D claims, 2024
- 629
- Publications
- 2
- Hospital affiliations
- 5
- Practice address
- 41 & 45 Mall Road, Burlington, MA 01803
- Practice phone
- Call (781) 744-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tien'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. Amy L. Tien is a gastroenterologist in Burlington, Massachusetts
Dr. Tien practices at Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health.
Dr. Tien's NPI, 1922033265, was assigned on July 12, 2006. Dr. Tien graduated from Boston University School of Medicine in 2003. Dr. Tien holds Massachusetts license 229263.
NPI and contact details
- NPI
- 1922033265NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456544360
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 744-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Amy L. Tien practices at Lahey Clinic in Burlington, Massachusetts
Dr. Tien's primary practice is Lahey Clinic, at 41 & 45 Mall Road, Burlington, MA 01803 in Middlesex County. The practice phone is (781) 744-5100.
- Lahey Clinic41 & 45 Mall Road, Burlington, MA 01803 · Middlesex CountyPhone(781) 744-5100
Source: Dmand AI Affiliation Data
Dr. Amy L. Tien is affiliated with 6 sites of care and 1 medical group
Dr. Tien's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. Dr. Tien is also affiliated with Beverly Hospital. The medical group on file is Lahey Clinic. Dmand AI also links Dr. Tien to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Beverly HospitalLahey Clinic3 hospitalsNames with a free account1 group practice or clinicName with a free account
See all 7 affiliations for Dr. TienSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Amy L. Tien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tien practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lahey Clinic | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Amy L. Tien is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Tien's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Tien is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Tien
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
597gastroenterologists in Massachusetts25gastroenterologists in Burlington24gastroenterologists at Lahey Clinic
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Amy L. Tien billed Medicare for 394 services in 2024
CMS data shows 394 Medicare services from Dr. Tien across 4 procedure codes in 2024, for 253 Medicare patients. Medicare paid $42,436 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024394
Medicare patients253
Paid by Medicare$42,436
Procedure codes4
Dr. Tien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4062024: 3943%
- Other services
- 2023: 152024: 0100%
Dr. Tien compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Tien
- Massachusetts median
- Medicare services
- 394vs 51924% below
- Medicare patients
- 253vs 34326% below
- Part D claims
- 546vs 30082% above
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Tien'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.
Need commercial claims for Dr. Tien?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tien and other gastroenterologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Amy L. Tien treated 253 Medicare patients in 2024, average age 71
CMS counts 253 Medicare patients who saw Dr. Tien in 2024. The largest group is 65 to 74, with 136 patients. 75% of them have high blood pressure, and 66% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Tien's median patient age at 67, with 45% women.
Medicare patients, 2024253
Average age71
Average risk score1.98
Also on Medicaid21%
Dr. Tien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tien's Medicare patients by sex, 2024
- Women11345%
- Men14055%
Chronic conditions among Dr. Tien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol66%
- Diabetes41%
- Arthritis40%
- Chronic kidney disease39%
- Anxiety30%
- Mood disorders30%
- Alcohol and drug use disorders27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Amy L. Tien wrote 629 Medicare Part D claims in 2024
In 2024, Dr. Tien wrote 629 Medicare Part D claims for 147 patients. 82% of them were for generic drugs. CMS names the drug for 546 of them, across 14 drugs with 11 or more claims each, at $426,408 in total drug cost. In 2023, CMS named 720 claims across 17 drugs.
Part D claims, 2024629
Drugs named by CMS14
Total drug cost$426,408
Part D patients147
Dr. Tien's Part D claims by kind of drug, 2024
- Generic515 claims82%
- Brand-name114 claims18%
Dr. Tien'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. Tien's Part D claims, 2024
- Antibiotics8%53 of 629 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: 7202024: 54624%
Drugs named by CMS: 14 in 2024, 17 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. Amy L. Tien ranks in the 42nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Tien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Tien, more than 42% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Tien ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 42nd percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Amy L. Tien has 2 publications on record
Dmand AI links 2 papers to Dr. Tien, published from 2011 to 2012. Dr. Tien's most frequent co-authors are Amanda Chao-Yu Chi, MD, Michael P. Curry, MD and Maarouf Ahmad Hoteit, MD.
Papers2
Years published2011 to 2012
Dr. Tien's most frequent co-authors
- Amanda Chao-Yu Chi, MD1 shared paper
- Michael P. Curry, MD1 shared paper
- Maarouf Ahmad Hoteit, MD1 shared paper
Recent publications by Dr. Tien
See who Dr. Tien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tien works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Amy L. Tien graduated from Boston University School of Medicine
Dr. Tien graduated from Boston University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Amy L. Tien'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Amy L. Tien
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. Amy L. Tien's NPI number?
Dr. Amy L. Tien's NPI number is 1922033265. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Amy L. Tien?
Dr. Amy L. Tien is a gastroenterologist in Burlington, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Amy L. Tien practice?
Dr. Tien practices at 41 & 45 Mall Road, Burlington, MA 01803. Dr. Tien's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Tien to 3 hospitals and 1 group practice or clinic.
What is Dr. Amy L. Tien's office phone number?
The practice phone on file for Dr. Tien is (781) 744-5100.
What is Dr. Amy L. Tien's medical license number?
Dr. Tien holds Massachusetts license 229263.
Which hospitals is Dr. Amy L. Tien affiliated with?
Dr. Tien practices at Lahey Clinic in Burlington, Massachusetts. Dr. Tien is also affiliated with Beverly Hospital. Dmand AI links Dr. Tien to 3 more hospitals.
What medical group is Dr. Amy L. Tien part of?
Dr. Tien is linked to Lahey Clinic.
Does Dr. Amy L. Tien accept Medicare?
Yes. CMS data shows Dr. Tien billed Medicare for 394 services in 2024, and Dr. Tien accepts Medicare assignment.
How many Medicare patients does Dr. Amy L. Tien see?
CMS counts 253 Medicare patients who saw Dr. Tien in 2024, with an average age of 71.
What services does Dr. Amy L. Tien bill to Medicare?
In 2024, Dr. Tien's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and hospital inpatient care (99223).
Show 5 more questionsShow fewer questions
Where did Dr. Amy L. Tien go to medical school?
Dr. Tien graduated from Boston University School of Medicine in 2003.
What drugs does Dr. Amy L. Tien prescribe most?
In 2024 Medicare Part D data, Dr. Tien's most prescribed drugs by claims were Ursodiol, Tacrolimus and Entecavir.
How long has Dr. Amy L. Tien been practicing?
Dr. Tien graduated from medical school in 2003, 23 years ago.
Does Dr. Amy L. Tien do research?
Dmand AI links 2 publications to Dr. Tien, published from 2011 to 2012.
Who does Dr. Amy L. Tien publish with?
Dr. Tien's most frequent co-authors are Amanda Chao-Yu Chi, MD (1 shared paper), Michael P. Curry, MD (1 shared paper) and Maarouf Ahmad Hoteit, MD (1 shared paper).
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