Cynthia Sink, D.P.M. FACFAS SC
NPI 1639168503 · Foot Surgery Podiatrist · Orland Park, IL
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Sink, D.P.M. FACFAS SC is a Foot Surgery Podiatrist provider in Orland Park, IL (NPI 1639168503).
Provider details
- NPI number
- 1639168503
- Entity type
- Individual
- Primary specialty
- Foot Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- D.P.M. FACFAS SC
- Sex
- Female
- Sole proprietor
- No
- License
- 016004273 (IL)
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
Podiatric Medicine & Surgery Service Providers
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
1,950 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) |
|---|---|---|
| Removal of Fingernails Or Toenails, 1-5 Nails11720 | 417 | $34 |
| Removal of Fingernails Or Toenails, 6 Or More Nails11721 | 394 | $46 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 339 | $94 |
| Removal of Noncancer Thickened Skin Growth, 2-4 Growths11056 | 284 | $83 |
| Removal of Noncancer Thickened Skin Growth, 1 Growth11055 | 144 | $72 |
| X-Ray of Foot, Minimum of 3 Views73630 | 114 | $35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Econazole Nitrate | 40 | 14 |
| Allopurinol | 31 | — |
| Clotrimazole | 28 | — |
| Gabapentin | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$170 across 1 record (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
- 2005-10-13
- Last updated
- 2021-12-09
- Certified
- 2021-12-09
Frequently asked questions
- What is Cynthia Sink's NPI number?
- Cynthia Sink's National Provider Identifier (NPI) is 1639168503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Sink's specialty?
- Cynthia Sink is listed in the NPPES registry with a primary specialty of Foot Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Cynthia Sink located?
- Cynthia Sink's practice location on file with NPPES is 10760 W 143rd St, Orland Park, IL 60462-1915.
- What is Cynthia Sink's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Sink is (708) 301-5600.
- Does Cynthia Sink accept Medicare?
- Cynthia Sink is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Sink's NPI active?
- Yes — Cynthia Sink's NPI (1639168503) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.