Hilary Haack, DO
NPI 1861839623 · Family Medicine Physician · Millsboro, DE
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hilary Haack, DO is a Family Medicine Physician provider in Millsboro, DE (NPI 1861839623).
Provider details
- NPI number
- 1861839623
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 34.012376 (OH)
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,488 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 | 940 | $83 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 401 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 357 | $70 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 278 | $50 |
| Administration of Influenza Virus VaccineG0008 | 114 | $32 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 128 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 850 | 250 |
| Lisinopril | 534 | 147 |
| Amlodipine Besylate | 453 | 124 |
| Losartan Potassium | 382 | 107 |
| Hydrochlorothiazide | 380 | 106 |
| Levothyroxine Sodium | 323 | 82 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$753 across 40 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
Additional practice locations (2)
- 100 E Carroll StSalisbury, MD 21801-5493Phone: (180) 074-9519
- 1230 Clark St Ste aCambridge, OH 43725-9611Phone: (740) 439-7772
Registry dates
- Enumerated
- 2013-06-03
- Last updated
- 2018-04-30
Frequently asked questions
- What is Hilary Haack's NPI number?
- Hilary Haack's National Provider Identifier (NPI) is 1861839623, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hilary Haack's specialty?
- Hilary Haack is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hilary Haack located?
- Hilary Haack's practice location on file with NPPES is 30265 Commerce Dr Unit 206, Millsboro, DE 19966-3595.
- What is Hilary Haack's phone number?
- The practice phone number listed in the NPPES registry for Hilary Haack is (302) 732-8400.
- Does Hilary Haack accept Medicare?
- Hilary Haack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hilary Haack's NPI active?
- Yes — Hilary Haack's NPI (1861839623) is active in the NPPES registry as of the last update on 2018-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.