Michael Eyer, D.O.
NPI 1033368337 · Family Medicine Physician · Hampstead, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Eyer, D.O. is a Family Medicine Physician provider in Hampstead, MD (NPI 1033368337).
Provider details
- NPI number
- 1033368337
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- H43987 (MD)
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
17 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
677 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 | 316 | $103 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 85 | $135 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 82 | $84 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 76 | $128 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 41 | $16 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 333 | 100 |
| Levothyroxine Sodium | 178 | 43 |
| Rosuvastatin Calcium | 116 | 32 |
| Amlodipine Besylate | 114 | 39 |
| Lisinopril | 101 | 35 |
| Tramadol Hcl | 93 | 19 |
| Famotidine | 92 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$466 across 23 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
- 2008-09-11
- Last updated
- 2025-09-24
- Certified
- 2025-09-24
Frequently asked questions
- What is Michael Eyer's NPI number?
- Michael Eyer's National Provider Identifier (NPI) is 1033368337, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Eyer's specialty?
- Michael Eyer is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Eyer located?
- Michael Eyer's practice location on file with NPPES is 4231 N Woods Trl Ste 100, Hampstead, MD 21074-3204.
- What is Michael Eyer's phone number?
- The practice phone number listed in the NPPES registry for Michael Eyer is (410) 374-0675.
- Does Michael Eyer accept Medicare?
- Michael Eyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Eyer's NPI active?
- Yes — Michael Eyer's NPI (1033368337) is active in the NPPES registry as of the last update on 2025-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.