Dr. Lancy Mimi Tan , MD
Surgery • Shoreline, WA
19930 Ballinger Way Ne
Shoreline, WA 981551223
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on March 27, 2017; this date does not establish years in practice.
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Published CMS data list 88 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Omeprazole — 41 prescription fills, including refills.
- Ondansetron Odt (Ondansetron) — 27 prescription fills, including refills.
- Oxycodone Hcl — 20 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 17 in 2019 to 88 in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019–2023.
Practice Location & Contact Primary Location
19930 Ballinger Way Ne
Shoreline, WA 981551223
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
94 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$2,095 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023.
Open Payments general payments, program year 2025
All general payments: $6,245.94 across 10 records.
By nature of payment
- Education: $4,750.00 across 1 record.
- Travel and Lodging: $1,435.12 across 7 records.
- Food and Beverage: $60.82 across 2 records.
Reporting-company totals
- INTUITIVE SURGICAL, INC.: $6,245.94 across 10 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2017
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Tan has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Tan as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Shoreline and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Tan are from 2023.
8 active clinicians are listed under Surgery with a practice address in Shoreline, WA (791 in Washington).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 17 in 2019 to 88 in 2023.
- 2019: 17
- 2020: 19
- 2021: 22
- 2022: 26
- 2023: 88
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30-day fills
30-day fills went from 17 in 2019 to 94 in 2023.
- 2019: 17
- 2020: 19
- 2021: 22
- 2022: 26
- 2023: 94
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Part D drug cost
Part D drug cost went from $51 in 2019 to $2,095 in 2023.
- 2019: $51
- 2020: $66
- 2021: $99
- 2022: $310
- 2023: $2,095
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $183.20 in 2023 to $6,245.94 in 2025.
- 2023: $183.20
- 2024: $3,648.45
- 2025: $6,245.94
Sources: CMS Medicare Part D Prescribers (2023), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $6,245.94.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| INTUITIVE SURGICAL, INC. |
Education
Cash or cash equivalent
|
Da Vinci Surgical System | General | $4,750.00 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
|
Da Vinci Surgical System | General | $589.09 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
|
Da Vinci Surgical System | General | $351.93 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
Cash or cash equivalent
|
Da Vinci Surgical System | General | $203.55 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
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Da Vinci Surgical System | General | $95.65 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
|
Da Vinci Surgical System | General | $90.65 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
|
Da Vinci Surgical System | General | $74.25 |
| INTUITIVE SURGICAL, INC. |
Food and Beverage
In-kind items and services
|
Da Vinci Surgical System | General | $37.16 |
| INTUITIVE SURGICAL, INC. |
Travel and Lodging
In-kind items and services
|
Da Vinci Surgical System | General | $30.00 |
| INTUITIVE SURGICAL, INC. |
Food and Beverage
Cash or cash equivalent
|
Da Vinci Surgical System | General | $23.66 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Omeprazole | Omeprazole | 41 | 1,378 | $658.91 | 11 |
| Ondansetron Odt | Ondansetron | 27 | 301 | $1,113.62 | 22 |
| Oxycodone Hcl | Oxycodone Hcl | 20 | 90 | $322.25 | 19 |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-04-05NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20220707001800
OR
4789955220
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Surgery
Doctor of Medicine (M.D.)
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Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 19930 BALLINGER WAY NE, SHORELINE, WA 981551223 (Tel: 4257782220)
Registered at 19930 BALLINGER WAY NE, SHORELINE, WA 981551223 (Tel: 4257782220)
Surgery (license number reported to NPPES: OR MD210187)
NPI status registered as active in NPPES database
Registered at 747 BROADWAY, SUITE WW-739, SEATTLE, WA 981224379 (Tel: 2063862123)
Registered at 747 BROADWAY, SUITE WW-739, SEATTLE, WA 981224379
Recorded as LANCY TAN, MD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
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Mailing Address
19930 Ballinger Way Ne
Shoreline, WA 981551223
Phone: 4257782220