Dr. Sing Lam, MD
- Medicare services, 2024
- 602
- Medicare patients, 2024
- 72
- Part D claims, 2024
- 5,463
- Industry payments
- $4,751
- Affiliated sites
- 1
- Practice address
- 10317 Greenwood Ave N, Seattle, WA 98133-9152
- Practice phone
- Call (206) 784-5188
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sing Lam Greenwood Medical
Physician office · Seattle, Washington
Find Dr. Lam'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. Sing Lam is an internist in Seattle, Washington
Dr. Lam practices at Sing Lam Greenwood Medical in Seattle, Washington.
Dr. Lam's NPI, 1285785659, was assigned on January 14, 2007. Dr. Lam holds Washington license MD00028318.
- NPI
- 1285785659NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729121330
- NPI enumeration date
- January 14, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (206) 784-5188
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sing Lam practices at Sing Lam Greenwood Medical in Seattle, Washington
Dr. Lam's primary practice is Sing Lam Greenwood Medical, at 10317 Greenwood Ave N, Seattle, WA 98133-9152. The practice phone is (206) 784-5188.
- Sing Lam Greenwood Medical10317 Greenwood Ave N, Seattle, WA 98133-9152Phone(206) 784-5188
Source: Dmand AI Affiliation Data
Dr. Sing Lam is affiliated with 1 site of care
Dr. Lam's primary practice is Sing Lam Greenwood Medical in Seattle, Washington.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sing Lam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lam practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sing Lam Greenwood Medical | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sing Lam is one of 2,689 internists in Washington
Internal medicine is Dr. Lam's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lam is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Lam
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. Sing Lam billed Medicare for 602 services in 2024
CMS data shows 602 Medicare services from Dr. Lam across 8 procedure codes in 2024, for 72 Medicare patients. Medicare paid $36,904 for them. Every service was in an office.
Dr. Lam's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5302024: 35234%
- Surgery
- 2023: 1352024: 10621%
- Tests and treatments
- 2023: 692024: 5422%
- Other services
- 2023: 782024: 4937%
- Lab and pathology
- 2023: 522024: 4121%
Dr. Lam compared with the Washington median for internists, 2024
- Dr. Lam
- Washington median
- Medicare services
- 602vs 36465% above
- Medicare patients
- 72vs 16556% below
- Part D claims
- 5,008vs 18227.5 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Lam'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. Lam?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lam and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sing Lam treated 72 Medicare patients in 2024, average age 82
CMS counts 72 Medicare patients who saw Dr. Lam in 2024. The largest group is 85 and over, with 32 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lam's median patient age at 76, with 54% women.
Dr. Lam's Medicare patients by age, 2024
Dr. Lam's Medicare patients by sex, 2024
- Women4157%
- Men3143%
Chronic conditions among Dr. Lam's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes38%
- Chronic kidney disease35%
- Osteoporosis26%
- Arthritis25%
- Atrial fibrillation17%
- Ischemic heart disease15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sing Lam wrote 5,463 Medicare Part D claims in 2024
In 2024, Dr. Lam wrote 5,463 Medicare Part D claims for 351 patients. 95% of them were for generic drugs. CMS names the drug for 5,008 of them, across 93 drugs with 11 or more claims each, at $127,855 in total drug cost. In 2023, CMS named 5,700 claims across 93 drugs.
Dr. Lam's Part D claims by kind of drug, 2024
- Generic5,209 claims95%
- Brand-name219 claims4%
- Other35 claims1%
Dr. Lam'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. Lam's Part D claims, 2024
- Opioids1%28 of 5,463 claims
- Antibiotics3%150 of 5,463 claims
- Antipsychotics, patients 65 and over0%27 of 5,463 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: 5,7002024: 5,00812%
Drugs named by CMS: 93 in 2024, 93 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. Sing Lam ranks in the 70th percentile for removal or shaving of skin growth in Medicare
Dr. Lam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lam as offering telehealth. CMS counts 19 procedures of removal or shaving of skin growth by Dr. Lam, more than 70% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Lam ranks in Medicare procedure volume
- Removal or shaving of skin growth
- 70th percentile19 procedures
- Colonoscopy
- 46th percentile18 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Sing Lam received $4,751 in industry payments from 2016 to 2024
CMS Open Payments shows 94 general payments to Dr. Lam from 3 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 63% of the total. Gilead Sciences, Inc. paid the most, $3,995.
General payments to Dr. Lam by program year, 2016 to 2024
General payments to Dr. Lam by kind, 2016 to 2024
- Consulting fees$3,00063%
- Travel and lodging$1,20125%
- Food and beverage$55012%
Companies that paid Dr. Lam the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sing Lam'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Sing Lam
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. Sing Lam's NPI number?
Dr. Sing Lam's NPI number is 1285785659. It was assigned on January 14, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Sing Lam?
Dr. Sing Lam is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sing Lam practice?
Dr. Lam practices at 10317 Greenwood Ave N, Seattle, WA 98133-9152. Dr. Lam's primary practice is Sing Lam Greenwood Medical in Seattle, Washington.
What is Dr. Sing Lam's office phone number?
The practice phone on file for Dr. Lam is (206) 784-5188.
What is Dr. Sing Lam's medical license number?
Dr. Lam holds Washington license MD00028318.
Does Dr. Sing Lam accept Medicare?
Yes. CMS data shows Dr. Lam billed Medicare for 602 services in 2024, and Dr. Lam accepts Medicare assignment.
Does Dr. Sing Lam offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lam as offering telehealth services.
How many Medicare patients does Dr. Sing Lam see?
CMS counts 72 Medicare patients who saw Dr. Lam in 2024, with an average age of 82.
What services does Dr. Sing Lam bill to Medicare?
In 2024, Dr. Lam's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36410) and office visit, established patient (99213).
What drugs does Dr. Sing Lam prescribe most?
In 2024 Medicare Part D data, Dr. Lam's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Losartan Potassium.
Has Dr. Sing Lam received payments from drug or device companies?
CMS Open Payments shows $4,751 in general payments to Dr. Lam from 3 companies from 2016 to 2024. The largest total came from Gilead Sciences, Inc.
How long has Dr. Sing Lam been practicing?
Dr. Lam graduated from medical school in 1984, 42 years ago.
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