Gregory Caldwell, O.D.
NPI 1205827912 · Optometrist · Duncansville, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Caldwell, O.D. is a Optometrist provider in Duncansville, PA (NPI 1205827912).
Provider details
- NPI number
- 1205827912
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- OEG000024 (PA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
325 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $91 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 38 | $127 |
| Imaging of Optic Nerve92133 | 34 | $36 |
| Exam of Visual Field With Extended Testing92083 | 29 | $62 |
| Photography of the Retina92250 | 20 | $36 |
| Exam of the Internal Drainage System of Eye92020 | 13 | $27 |
Typical Medicare-allowed amounts for these services range $27–$127 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 106 | 29 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 100 | 27 |
| Bimatoprostbrand: Lumigan | 42 | 13 |
| Netarsudil Mesylat/Latanoprostbrand: Rocklatan | 35 | — |
| Doxycycline Monohydrate | 18 | — |
| Prednisolone Acetate | 18 | 11 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$113,748 across 87 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
- 2005-11-02
- Last updated
- 2010-02-12
Frequently asked questions
- What is Gregory Caldwell's NPI number?
- Gregory Caldwell's National Provider Identifier (NPI) is 1205827912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Caldwell's specialty?
- Gregory Caldwell is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Caldwell located?
- Gregory Caldwell's practice location on file with NPPES is 108 Olde Farm Office Rd, Duncansville, PA 16635-9417.
- What is Gregory Caldwell's phone number?
- The practice phone number listed in the NPPES registry for Gregory Caldwell is (814) 695-3141.
- Does Gregory Caldwell accept Medicare?
- Gregory Caldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Caldwell's NPI active?
- Yes — Gregory Caldwell's NPI (1205827912) is active in the NPPES registry as of the last update on 2010-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.