Nathan Hemerly, DO
NPI 1669792784 · Family Medicine Physician · Mechanicsburg, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Hemerly, DO is a Family Medicine Physician provider in Mechanicsburg, PA (NPI 1669792784).
Provider details
- NPI number
- 1669792784
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
411 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 173 | $93 |
| 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 | 145 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $63 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 35 | $137 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 18 | $133 |
Typical Medicare-allowed amounts for these services range $16–$137 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 337 | 87 |
| Amlodipine Besylate | 220 | 60 |
| Omeprazole | 163 | 42 |
| Levothyroxine Sodium | 162 | 43 |
| Lisinopril | 129 | 42 |
| Hydrochlorothiazide | 127 | 33 |
| Gabapentin | 113 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-11
- Last updated
- 2017-10-16
Frequently asked questions
- What is Nathan Hemerly's NPI number?
- Nathan Hemerly's National Provider Identifier (NPI) is 1669792784, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Hemerly's specialty?
- Nathan Hemerly is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Hemerly located?
- Nathan Hemerly's practice location on file with NPPES is 140 Old Willow Mill Rd, Mechanicsburg, PA 17050-1816.
- What is Nathan Hemerly's phone number?
- The practice phone number listed in the NPPES registry for Nathan Hemerly is (717) 766-4635.
- Does Nathan Hemerly accept Medicare?
- Nathan Hemerly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Hemerly's NPI active?
- Yes — Nathan Hemerly's NPI (1669792784) is active in the NPPES registry as of the last update on 2017-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.