Dr. Spencer Ng, MD, PhD
- Medicare services, 2024
- 741
- Medicare patients, 2024
- 200
- Part D claims, 2024
- 328
- MIPS score, 2024
- 84
- Hospital affiliations
- 2
- Practice address
- 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611
- Practice phone
- Call (312) 472-5200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Medicine Dialysis Center
Dialysis Center - Independent · Chicago, Illinois
Find Dr. Ng'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. Spencer Ng is a dermatologist in Chicago, Illinois
Dr. Ng practices at Northwestern Medicine Dialysis Center in Chicago, Illinois.
Dr. Ng's NPI, 1235633652, was assigned on March 20, 2018. Dr. Ng graduated from Emory University School of Medicine in 2018. Dr. Ng holds Missouri license 2024013120.
- NPI
- 1235633652NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416281746
- NPI enumeration date
- March 20, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 472-5200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Spencer Ng practices at Northwestern Medicine Dialysis Center in Chicago, Illinois
Dr. Ng's primary practice is Northwestern Medicine Dialysis Center, at 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611 in Cook County. The practice phone is (312) 472-5200.
- Northwestern Medicine Dialysis Center676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611 · Cook CountyPhone(312) 472-5200
Source: Dmand AI Affiliation Data
Dr. Spencer Ng is affiliated with 5 sites of care and 2 medical groups
Dr. Ng's primary practice is Northwestern Medicine Dialysis Center in Chicago, Illinois. Dr. Ng is also affiliated with Barnes-Jewish Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Ng to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Spencer Ng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ng practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Dialysis Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Spencer Ng is one of 564 dermatologists in Illinois
Dermatology is Dr. Ng's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Ng is licensed in Missouri.
Specialties and state licenses
- Dermatology, MissouriPrimary
Dermatologists near Dr. Ng
Counts of dermatologists 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. Spencer Ng billed Medicare for 741 services in 2024
CMS data shows 741 Medicare services from Dr. Ng across 9 procedure codes in 2024, for 200 Medicare patients. Medicare paid $33,744 for them. Every service was in an office.
Dr. Ng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1752024: 534205%
- Office and hospital visits
- 2023: 1322024: 20757%
Dr. Ng compared with the Illinois median for dermatologists, 2024
- Dr. Ng
- Illinois median
- Medicare services
- 741vs 1,77958% below
- Medicare patients
- 200vs 49159% below
- Part D claims
- 237vs 40541% below
Medians across 526 dermatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Ng'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ng and other dermatologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Spencer Ng treated 200 Medicare patients in 2024, average age 75
CMS counts 200 Medicare patients who saw Dr. Ng in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ng's median patient age at 70, with 51% women.
Dr. Ng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ng's Medicare patients by sex, 2024
- Women6131%
- Men13970%
Chronic conditions among Dr. Ng's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis48%
- Ischemic heart disease29%
- Diabetes27%
- Chronic kidney disease24%
- Cancer23%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Spencer Ng wrote 328 Medicare Part D claims in 2024
In 2024, Dr. Ng wrote 328 Medicare Part D claims for 146 patients. 95% of them were for generic drugs. CMS names the drug for 237 of them, across 9 drugs with 11 or more claims each, at $5,169 in total drug cost. In 2023, CMS named 118 claims across 5 drugs.
Dr. Ng's Part D claims by kind of drug, 2024
- Generic310 claims95%
- Brand-name18 claims5%
Dr. Ng'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. Ng's Part D claims, 2024
- Antibiotics6%19 of 328 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: 1182024: 237101%
Drugs named by CMS: 9 in 2024, 5 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. Spencer Ng scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Ng for performance year 2024, reported as part of a group. Dr. Ng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 334 procedures of removal of skin lesions by Dr. Ng, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Ng's MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Ng ranks in Medicare procedure volume
- Removal of skin lesions
- 83rd percentile334 procedures
- Skin biopsy
- 78th percentile118 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 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. Spencer Ng received $6,662 in industry payments from 2019 to 2025
CMS Open Payments shows 47 general payments to Dr. Ng from 12 drug and device companies from 2019 to 2025. Speaker and faculty fees make up the largest share, 52% of the total. Sanofi and Genzyme US Companies paid the most, $3,866.
General payments to Dr. Ng by program year, 2019 to 2025
General payments to Dr. Ng by kind, 2019 to 2025
- Speaker and faculty fees$3,45552%
- Food and beverage$3,18148%
- Travel and lodging$250%
Companies that paid Dr. Ng the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Spencer Ng graduated from Emory University School of Medicine
Dr. Ng graduated from Emory University School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Spencer Ng'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Spencer Ng
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. Spencer Ng's NPI number?
Dr. Spencer Ng's NPI number is 1235633652. It was assigned on March 20, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Spencer Ng?
Dr. Spencer Ng is a dermatologist in Chicago, Illinois. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Spencer Ng practice?
Dr. Ng practices at 676 N St Clair St 20th Fl Ste 2020, Chicago, IL 60611. Dr. Ng's primary practice is Northwestern Medicine Dialysis Center in Chicago, Illinois. Dmand AI also links Dr. Ng to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Spencer Ng's office phone number?
The practice phone on file for Dr. Ng is (312) 472-5200.
What is Dr. Spencer Ng's medical license number?
Dr. Ng holds Missouri license 2024013120.
Which hospitals is Dr. Spencer Ng affiliated with?
Dr. Ng is affiliated with Barnes-Jewish Hospital. Dmand AI links Dr. Ng to 1 more hospital.
What medical group is Dr. Spencer Ng part of?
Dr. Ng is linked to Northwestern Medical Faculty Foundation. Dmand AI links Dr. Ng to 1 more medical group.
Does Dr. Spencer Ng accept Medicare?
Yes. CMS data shows Dr. Ng billed Medicare for 741 services in 2024, and Dr. Ng accepts Medicare assignment.
What is Dr. Spencer Ng's MIPS score?
Dr. Ng's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Spencer Ng see?
CMS counts 200 Medicare patients who saw Dr. Ng in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Spencer Ng bill to Medicare?
In 2024, Dr. Ng's most billed Medicare services were surgery: skin and soft tissue (17003), surgery: skin and soft tissue (17000) and office visit, established patient (99214).
Where did Dr. Spencer Ng go to medical school?
Dr. Ng graduated from Emory University School of Medicine in 2018.
What drugs does Dr. Spencer Ng prescribe most?
In 2024 Medicare Part D data, Dr. Ng's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Clobetasol Propionate.
Has Dr. Spencer Ng received payments from drug or device companies?
CMS Open Payments shows $6,662 in general payments to Dr. Ng from 12 companies from 2019 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Spencer Ng been practicing?
Dr. Ng graduated from medical school in 2018, 8 years ago.
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