Physician Profile
Unclaimed ProfileAbout BLAHA
Gregory R. Blaha, MD, PhD practices ophthalmology in Peabody, MA. Gregory is a 2000 graduate of Perelman School of Med at the University of Pennsylvania. Gregory is also listed as specializing in ophthalmology — retina specialist. According to Medicare claims data, Gregory cared for 2,832 Medicare patients across 9,716 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (978) 538-4400
- Email not available
Practice Locations
ONE ESSEX CENTER DRIVE LAHEY CLINIC
Peabody, MA 01960
Procedures Most Often Billed to Medicare
9,716 services · 2,832 patients · 24 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
823 |
| Injection of drug into eye | Procedure | 67028 |
444 |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
39 |
| Destruction of leaking blood vessels of retina using laser | Procedure | 67228 |
20 |
| Removal of membrane of retina with removal of internal limiting membrane of retina | Procedure | 67042 |
19 |
| Photocoagulation treatment to prevent detachment of retina | Procedure | 67145 |
12 |
| 2d ultrasound scan of eye tissue and structures | Imaging | 76512 |
31 |
| Imaging of retina | Treatment | 92134 |
1,429 |
| Imaging of retina | Treatment | 92134 |
731 |
| Photography of the retina | Treatment | 92250 |
76 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other ophthalmology specialists in Peabody 8
Same specialty, same city.
Trained at Perelman School of Med at the University of Pennsylvania 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2000 at Perelman School of Med at the University of Pennsylvania 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Dr. Blaha specialize in?
Dr. Blaha is an ophthalmology in Peabody, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Blaha located?
Dr. Blaha is listed at ONE ESSEX CENTER DRIVE LAHEY CLINIC, Peabody, MA 01960. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Blaha's phone number?
The number on file is (978) 538-4400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Blaha's NPI number?
Dr. Blaha's National Provider Identifier is 1902998776. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Blaha go to medical school?
Dr. Blaha attended Perelman School of Med at the University of Pennsylvania, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Blaha been practicing?
Dr. Blaha has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Blaha do most often?
According to Medicare billing data, Dr. Blaha performs procedures including injection of drug into eye, removal of cataract with insertion of prosthetic lens and destruction of leaking blood vessels of retina using laser; reads or performs imaging such as 2d ultrasound scan of eye tissue and structures; provides treatments such as imaging of retina and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Blaha confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Blaha. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.