Douglas Grayson, M.D.
NPI 1689674129 · Ophthalmology Physician · Iselin, NJ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Grayson, M.D. is a Ophthalmology Physician provider in Iselin, NJ (NPI 1689674129).
Provider details
- NPI number
- 1689674129
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA06225100 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
21 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
9,403 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,465 | $141 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 1,273 | $510 |
| Exam of the Internal Drainage System of Eye92020 | 856 | $30 |
| Imaging of Optic Nerve92133 | 831 | $38 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 660 | $17 |
| Exam of Visual Field With Extended Testing92083 | 653 | $71 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 4,089 | 2,063 |
| Moxifloxacin Hclbrand: Moxifloxacin | 3,674 | 1,959 |
| Latanoprost | 2,196 | 634 |
| Timolol Maleate | 1,020 | 335 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 901 | 299 |
| Bimatoprostbrand: Lumigan | 353 | 113 |
| Brimonidine Tartrate | 206 | 67 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$56,951 across 110 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
- 2005-07-27
- Last updated
- 2017-04-24
Frequently asked questions
- What is Douglas Grayson's NPI number?
- Douglas Grayson's National Provider Identifier (NPI) is 1689674129, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Grayson's specialty?
- Douglas Grayson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Grayson located?
- Douglas Grayson's practice location on file with NPPES is 485a US Highway 1 S, Iselin, NJ 08830-3012.
- What is Douglas Grayson's phone number?
- The practice phone number listed in the NPPES registry for Douglas Grayson is (732) 750-0400.
- Does Douglas Grayson accept Medicare?
- Douglas Grayson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Grayson's NPI active?
- Yes — Douglas Grayson's NPI (1689674129) is active in the NPPES registry as of the last update on 2017-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.