MOHAMAD-AMMAR F AYASS (M.D.) – Pulmonary Disease Physician, NPI 1821036559
Pulmonary Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,186 PULMONARY DISEASE in TX
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Provider Addresses for MOHAMAD-AMMAR F AYASS (M.D.)
8501 WADE BLVD STE 750
FRISCO, TX 750346437
Phone: (972) 668-6005
Fax: (972) 635-4440
Type: Mailing
3021, Green Meadow Drive, Southland, San Angelo, Tom Green County, Texas, 76904, United States
SAN ANGELO, TX 769046975
Phone: (325) 223-1800
Fax: (325) 223-1810
Type: Location
223, South Abe Street, Downtown, San Angelo, Tom Green County, Texas, 76903, United States
SAN ANGELO, TX 769036305
Phone: (325) 655-7969
Fax: (325) 655-7976
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $84.
Total Amount is formed as General ($84) + Research ($0) + Ownership ($0) = $84.
Last reported payment date: 2024-10-02 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($55).
Total Amount
$84
General + Research + Ownership
Payments
5
Total payment records
General Amount
$84
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $55 |
| Baxter Healthcare | $15 |
| Daiichi Sankyo Inc. | $13 |
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: 2004-08-11
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 |
|---|---|---|---|---|
| I20040811000989 | I | Pulmonary Disease | TX | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 267 | 85 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 43 | 43 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 32 | 13 | $0 |
| J1040 | Injection, methylprednisolone acetate, 80 mg | 18 | 12 | $0 |
Insurance plans in this area (ZIP 75034)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PULMONARY DISEASE | TX | 93922 | Ultrasound study of arteries of both arms and legs | 87 | 82 |
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