Ernest Hayes, M.D.
NPI 1083776678 · Obstetrics & Gynecology Physician · Hazel Crest, IL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ernest Hayes, M.D. is a Obstetrics & Gynecology Physician provider in Hazel Crest, IL (NPI 1083776678).
Provider details
- NPI number
- 1083776678
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036043976 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Medroxyprogesterone Acetate | 15 |
| Triamcinolone Acetonide | 11 |
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.
Practice location
Mailing address
Additional practice locations (2)
- 8012 S Crandon Ave Ste 100Chicago, IL 60617-1124Phone: (773) 356-5415Fax: (773) 768-6141
- 400 E Randolph StChicago, IL 60601-7329Phone: (312) 504-3848Fax: (312) 565-2267
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2024-07-26
- Certified
- 2024-07-24
Frequently asked questions
- What is Ernest Hayes's NPI number?
- Ernest Hayes's National Provider Identifier (NPI) is 1083776678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernest Hayes's specialty?
- Ernest Hayes is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ernest Hayes located?
- Ernest Hayes's practice location on file with NPPES is 3330 W 177th St Ste 3g, Hazel Crest, IL 60429-2199.
- What is Ernest Hayes's phone number?
- The practice phone number listed in the NPPES registry for Ernest Hayes is (708) 333-3030.
- Does Ernest Hayes accept Medicare?
- Ernest Hayes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ernest Hayes's NPI active?
- Yes — Ernest Hayes's NPI (1083776678) is active in the NPPES registry as of the last update on 2024-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.