May Chow, M.D.
NPI 1518918879 · Dermatology Physician · Olympia Fields, IL
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
May Chow, M.D. is a Dermatology Physician provider in Olympia Fields, IL (NPI 1518918879).
Provider details
- NPI number
- 1518918879
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036066647 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
575 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 244 | $132 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 | 138 | $173 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 70 | $66 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $187 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 43 | $117 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Imiquimod | 92 | 46 |
| Ketoconazole | 68 | 39 |
| Triamcinolone Acetonide | 62 | 49 |
| Fluconazole | 47 | 13 |
| Valacyclovir Hclbrand: Valacyclovir | 41 | 15 |
| Doxycycline Hyclate | 40 | — |
| Tacrolimus | 33 | 21 |
| Spironolactone | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,984 across 156 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2021-03-22
- Certified
- 2021-03-22
Frequently asked questions
- What is May Chow's NPI number?
- May Chow's National Provider Identifier (NPI) is 1518918879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is May Chow's specialty?
- May Chow is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is May Chow located?
- May Chow's practice location on file with NPPES is 3700 W 203rd St, Olympia Fields, IL 60461-1180.
- What is May Chow's phone number?
- The practice phone number listed in the NPPES registry for May Chow is (708) 679-2560.
- Does May Chow accept Medicare?
- May Chow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is May Chow's NPI active?
- Yes — May Chow's NPI (1518918879) is active in the NPPES registry as of the last update on 2021-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.