Doctor profile · Federal record
Dr. Grayson Armstrong, M.D., M.P.H.
Ophthalmology Physician (CMS: Ophthalmology) · Boston, MA
- NPI 1205213972
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
243 Charles St
Boston, MA 021143002
(617) 523-7900
Credentials & registration
- NPI registered
- May 2015 — 11 yrs on file
- Profile last updated
- May 30, 2019
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- Massachusetts #278428
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205213972. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
258
Distinct HCPCS
9
Medicare allowed
$30,703
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92134 |
Imaging of retina | 50 | 45 | $27 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 42 | 40 | $104 | |
92136 |
Measurement of corneal curvature and depth of eye | 34 | 33 | $33 | |
92025 |
Ct scan of cornea | 27 | 27 | $21 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 22 | $70 | |
92014 |
Established patient complete exam of visual system | 23 | 23 | $82 | |
99283 |
Emergency department visit with low level of medical decision making | 23 | 23 | $75 | |
66982 |
Complex removal of cataract with insertion of prosthetic lens | 20 | 16 | $814 | |
99284 |
Emergency department visit with moderate level of medical decision making | 12 | 12 | $126 |
In context: peer comparison
Among 89 peers in Boston Ophthalmology Physician, average services per provider: 193. This provider delivers 1.3× the peer median.Open Payments
Industry payments received
All-time total
$341
Transactions
5
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 2 | $176.70 | |
| Johnson & Johnson Surgical Vision, INC. | 1 | $68.53 | |
| Genentech USA, INC. | 1 | $61.28 | |
| Apellis Pharmaceuticals, INC. | 1 | $34.06 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
508
Patients
231
Total drug cost
$44,367
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisolone Acetate | Generic | 128 | 73 | $7,170 |
| Moxifloxacin (Moxifloxacin Hcl) | Brand | 75 | 48 | $2,628 |
| Ketorolac Tromethamine | Generic | 69 | 45 | $1,488 |
| Brimonidine Tartrate | Generic | 52 | 15 | $597 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 43 | 15 | $975 |
| Latanoprost | Generic | 41 | 14 | $572 |
| Erythromycin (Erythromycin Base) | Brand | 32 | 21 | $571 |
| Xiidra (Lifitegrast) | Brand | 18 | 0 | $13,485 |
| Atropine Sulfate | Generic | 14 | 0 | $538 |
| Restasis (Cyclosporine) | Brand | 13 | 0 | $13,182 |
Hospital affiliations
Frequently asked questions
What is Dr. Grayson Armstrong's medical specialty?
Dr. Grayson Armstrong practices Ophthalmology Physician in Boston, MA.
Where does Dr. Grayson Armstrong practice?
Dr. Grayson Armstrong practices at 243 Charles St, Boston, MA 021143002. Office phone: 6175237900.
What is Dr. Grayson Armstrong's NPI?
Dr. Grayson Armstrong's National Provider Identifier (NPI) is 1205213972, issued by NPPES.
Does Dr. Grayson Armstrong accept Medicare assignment?
Yes. Dr. Grayson Armstrong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grayson Armstrong commonly perform?
Top Medicare-reported procedures in 2023: Imaging of retina (HCPCS 92134); Established patient office or other outpatient visit (HCPCS 99214); Measurement of corneal curvature and depth of eye (HCPCS 92136). Source: CMS Medicare Physician & Other Practitioners file.