Lien Lam, M.D.
NPI 1972820702 · Emergency Medicine Physician · Patchogue, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lien Lam, M.D. is a Emergency Medicine Physician provider in Patchogue, NY (NPI 1972820702).
Provider details
- NPI number
- 1972820702
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 60250762 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
846 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 319 | $138 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 292 | $200 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 113 | $81 |
| Critical Care, First 30-74 Minutes99291 | 51 | $241 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $196 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 17 | $92 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefpodoxime Proxetil | 49 | 49 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 27 | 26 |
| Prednisone | 27 | 27 |
| Ondansetronbrand: Ondansetron Odt | 16 | 16 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 14 | 14 |
| Famotidine | 13 | 13 |
| Methocarbamol | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-05-04
- Last updated
- 2012-10-01
Frequently asked questions
- What is Lien Lam's NPI number?
- Lien Lam's National Provider Identifier (NPI) is 1972820702, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lien Lam's specialty?
- Lien Lam is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lien Lam located?
- Lien Lam's practice location on file with NPPES is 101 Hospital Rd, Patchogue, NY 11772-4870.
- What is Lien Lam's phone number?
- The practice phone number listed in the NPPES registry for Lien Lam is (631) 654-7100.
- Does Lien Lam accept Medicare?
- Lien Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lien Lam's NPI active?
- Yes — Lien Lam's NPI (1972820702) is active in the NPPES registry as of the last update on 2012-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.