Blake Isernhagen, MD
NPI 1336469444 · Retina Specialist (Ophthalmology) Physician · Lexington, KY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Blake Isernhagen, MD is a Retina Specialist (Ophthalmology) Physician provider in Lexington, KY (NPI 1336469444).
Provider details
- NPI number
- 1336469444
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 48761 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
5,169 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) |
|---|---|---|
| Imaging of Retina92134 | 2,129 | $38 |
| Injection of Drug Into Eye67028 | 1,598 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 746 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 362 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 73 | $162 |
| Unclassified BiologicsJ3590 | 52 | $860 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 158 | 73 |
| Difluprednate | 149 | 77 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 145 | 53 |
| Latanoprost | 99 | 34 |
| Valacyclovir Hclbrand: Valacyclovir | 93 | 33 |
| Brimonidine Tartrate | 76 | 33 |
| Timolol Maleate | 75 | 31 |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15,517 across 50 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
- 2010-06-11
- Last updated
- 2018-08-22
Frequently asked questions
- What is Blake Isernhagen's NPI number?
- Blake Isernhagen's National Provider Identifier (NPI) is 1336469444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Blake Isernhagen's specialty?
- Blake Isernhagen is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Blake Isernhagen located?
- Blake Isernhagen's practice location on file with NPPES is 120 N Eagle Creek Dr, Lexington, KY 40509.
- What is Blake Isernhagen's phone number?
- The practice phone number listed in the NPPES registry for Blake Isernhagen is (859) 263-3900.
- Does Blake Isernhagen accept Medicare?
- Blake Isernhagen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Blake Isernhagen's NPI active?
- Yes — Blake Isernhagen's NPI (1336469444) is active in the NPPES registry as of the last update on 2018-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.