MS. TAMMY L WELCH (PAC) – Physician Assistant, NPI 1477551208
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,366 PHYSICIAN ASSISTANT in MD
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Provider Addresses for MS. TAMMY L WELCH (PAC)
Observation Drive, Meadowbrook Estates, Germantown, Montgomery County, Maryland, 20876, United States
GERMANTOWN, MD 208766419
Phone: (301) 762-0277
Fax: (301) 330-9108
Type: Mailing
1 FREDERICK HEALTH WAY
FREDERICK, MD 217019435
Phone:
Type: Mailing
1562 OPOSSUMTOWN PIKE
FREDERICK, MD 217024920
Phone: (301) 694-5861
Fax: (240) 439-8910
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 20 Open Payments records for all available years, with a total value of $3,175.
Total Amount is formed as General ($3,175) + Research ($0) + Ownership ($0) = $3,175.
Last reported payment date: 2024-12-04 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($2,464).
Total Amount
$3,175
General + Research + Ownership
Payments
20
Total payment records
General Amount
$3,175
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $2,464 |
| AstraZeneca Pharmaceuticals LP | $375 |
| E.R. Squibb & Sons, L.L.C. | $131 |
| Mirati Therapeutics, Inc. | $127 |
| Genentech USA, Inc. | $61 |
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: 2011-03-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040716000357 | I | Physician Assistant | MD | TBD |
| I20110307000659 | I | Physician Assistant | DC | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 166 | 150 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 75 | 74 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 51 | 50 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 51 | 51 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 20876)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MD | |
| Internal Medicine | MD | |
| Gastroenterology, Internal Medicine | MD | |
| Physician Assistant | MD | |
| Nurse Practitioner | PA | |
| - | MD | |
| - | IL | |
| - | MD | |
| Family Practice | MD | |
| - | MD |
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