Mark Heimmel, MD
NPI 1942427125 · Ophthalmology Physician · East Windsor, NJ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Heimmel, MD is a Ophthalmology Physician provider in East Windsor, NJ (NPI 1942427125).
Provider details
- NPI number
- 1942427125
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA08575000 (NJ)
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
19 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
4,873 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 Complete Exam of Visual System92014 | 1,188 | $136 |
| Imaging of Retina92134 | 923 | $42 |
| Photography of the Retina92250 | 598 | $40 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 335 | $16 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 256 | $48 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 223 | $177 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 459 | 263 |
| Ketorolac Tromethamine | 401 | 251 |
| Ofloxacin | 214 | 146 |
| Ciprofloxacin Hcl | 210 | 126 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 143 | 99 |
| Latanoprost | 122 | 48 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 100 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$114 across 6 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
- 2007-04-19
- Last updated
- 2022-09-13
- Certified
- 2022-09-13
Frequently asked questions
- What is Mark Heimmel's NPI number?
- Mark Heimmel's National Provider Identifier (NPI) is 1942427125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Heimmel's specialty?
- Mark Heimmel is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Heimmel located?
- Mark Heimmel's practice location on file with NPPES is 300b Princeton Hightstown Rd Ste 207, East Windsor, NJ 08520-1400.
- What is Mark Heimmel's phone number?
- The practice phone number listed in the NPPES registry for Mark Heimmel is (609) 756-3900.
- Does Mark Heimmel accept Medicare?
- Mark Heimmel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Heimmel's NPI active?
- Yes — Mark Heimmel's NPI (1942427125) is active in the NPPES registry as of the last update on 2022-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.