Charles Gerlach, M.D.
NPI 1053369447 · Internal Medicine Physician · Harrisburg, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Gerlach, M.D. is a Internal Medicine Physician provider in Harrisburg, PA (NPI 1053369447).
Provider details
- NPI number
- 1053369447
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD040699L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,864 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 623 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 564 | $122 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 163 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $86 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 73 | $60 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 192 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 753 | 211 |
| Amlodipine Besylate | 616 | 179 |
| Metformin Hcl | 519 | 152 |
| Metoprolol Succinate | 480 | 134 |
| Levothyroxine Sodium | 433 | 120 |
| Rosuvastatin Calcium | 422 | 113 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2021-01-02
- Certified
- 2021-01-02
Frequently asked questions
- What is Charles Gerlach's NPI number?
- Charles Gerlach's National Provider Identifier (NPI) is 1053369447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Gerlach's specialty?
- Charles Gerlach is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Gerlach located?
- Charles Gerlach's practice location on file with NPPES is 805 Sir Thomas Ct, Harrisburg, PA 17109-4839.
- What is Charles Gerlach's phone number?
- The practice phone number listed in the NPPES registry for Charles Gerlach is (717) 988-0020.
- Does Charles Gerlach accept Medicare?
- Charles Gerlach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Gerlach's NPI active?
- Yes — Charles Gerlach's NPI (1053369447) is active in the NPPES registry as of the last update on 2021-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.