Spencer Ng, MD PHD
Dermatology Physician · Saint Louis, MO
Spencer Ng, MD PHD is a dermatology physician with a practice address in Saint Louis, Missouri, and NPI 1235633652, issued on Mar 20, 2018. Check the license (Missouri 2024013120, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Spencer Ng
- Credential
- MD PHD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 2024013120 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4500 Forest Park Ave, Saint Louis, MO 63108
- Phone
- (314) 273-3376
- Enumerated
- Mar 20, 2018
- Record last updated
- Apr 17, 2025
- Fax
- (888) 665-8309
- Medicaid ID
- 200140817 MO
- Medicare enrollment
- Enrolled (PECOS I20240523001374); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 278 in Missouri → Look up another NPI →
Also registered at 4500 Forest Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Camille Abboud, MDMedical Oncology Physician1316965320
- Douglas Adkins, MDMedical Oncology Physician1164440616
- Rebecca Aft, MDSurgical Oncology Physician1164440897
- Amber Afzal, MDHematology (Internal Medicine) Physician1831539808
- Caleb Bannister, PHARM. D.Pharmacist1124718283
- Stephanie Bauer, FNPFamily Nurse Practitioner1639285968
Verify Spencer Ng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2024013120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average dermatology physician in 2024
328 Medicare Part D claims for 146 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Ketoconazole56 claims
- Triamcinolone Acetonide54 claims
- Clobetasol Propionate29 claims
- Mupirocin29 claims
- Hydroxyzine Hcl17 claims
- Hydrocortisone16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Ng among 278 dermatology physician records in Missouri
Spencer Ng, MD PHD is one of 278 dermatology physician records with a practice address in Missouri. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 77% of them.
- NPI issued2018 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2018 · median 2008 among the 190 with a school on file
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Missouri
There are 278 dermatology physician records in Missouri.
All 278 in Missouri → Every provider in Saint Louis → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Milan Anadkat, MDSaint Louis, MO 631081639267149
- David Chen, MDSaint Louis, MO 631081497018774
- Emily Cole, MDSaint Louis, MO 631081194105981
- Lynn Cornelius, MDSaint Louis, MO 631081922025451
- Heather Jones, MDSaint Louis, MO 631081528354438
- Brian Kim, MDSaint Louis, MO 631081336331826
- Nita Kohli, MDSaint Louis, MO 631081285835454
- Rabia Mayer, MDSaint Louis, MO 631081760865174
Common questions
What is Spencer Ng, MD PHD's NPI number?
Spencer Ng, MD PHD's National Provider Identifier (NPI) is 1235633652, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Ng, MD PHD located?
The NPPES record lists a practice address at 4500 Forest Park Ave, Saint Louis, MO, 63108. Phone: (314) 273-3376. Providers update this record themselves, so call before visiting.
How can I verify Spencer Ng, MD PHD's license?
NPPES lists Missouri license number 2024013120, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer Ng, MD PHD prescribe under Medicare Part D?
In 2024, Spencer Ng, MD PHD had 328 Medicare Part D claims for 146 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Spencer Ng, MD PHD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.