JAMES W UMLAS (MD) – Ophthalmology Physician, NPI 1942268883
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
801 OPHTHALMOLOGY in MA
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Provider Addresses for JAMES W UMLAS (MD)
21, Worthen Road, Lexington, Middlesex County, Massachusetts, 02420, United States
LEXINGTON, MA 024214835
Phone: (781) 862-1620
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-08-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20080804000508 | I | Ophthalmology | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 92014 | Established patient complete exam of visual system | 1,232 | 1,182 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 422 | 339 | $0 |
| 92133 | Imaging of optic nerve | 286 | 275 | $0 |
| 92083 | Exam of visual field with extended testing | 285 | 266 | $0 |
| 92012 | Established patient problem focused exam of visual system | 187 | 143 | $0 |
Insurance plans in this area (ZIP 02421)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| O P H T H A L M O L O G Y | NC | |
| - | MA | |
| O P T O M E T R Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| O P H T H A L M O L O G Y | MA | |
| - | MA |
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