DR. CHRISTOPHER JAMES FARMAKIS (MD) – Nephrology Physician, NPI 1619405552
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,168 NEPHROLOGY in TX
Provider Addresses for DR. CHRISTOPHER JAMES FARMAKIS (MD)
101 PARK HILL DR
FREDERICKSBURG, VA 224013357
Phone: (540) 371-3010
Fax: (540) 899-9821
Type: Mailing
1441 N BECKLEY AVE
DALLAS, TX 752031201
Phone: (214) 947-6700
Fax: (214) 947-6701
Type: Location
1441 N BECKLEY AVE FL 5
DALLAS, TX 752031201
Phone: (214) 947-2306
Fax: (214) 947-6701
Type: Mailing
1201 SEVEN LOCKS RD STE 200A
ROCKVILLE, MD 208542931
Phone: (301) 907-4646
Fax: (301) 907-7796
Type: Mailing
1201 SEVEN LOCKS RD STE 200
ROCKVILLE, MD 208542960
Phone: (301) 907-4646
Fax: (301) 907-7796
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $39.
Total Amount is formed as General ($39) + Research ($0) + Ownership ($0) = $39.
Last reported payment date: 2023-06-29 • Largest payer in this snapshot: Ascendis Pharma Inc ($20).
Total Amount
$39
General + Research + Ownership
Payments
2
Total payment records
General Amount
$39
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Ascendis Pharma Inc | $20 |
| Medtronic, Inc. | $19 |
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: 2023-04-28
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 |
|---|---|---|---|---|
| I20220412002615 | I | Nephrology | DC | TBD |
| I20230428001854 | I | Nephrology | VA | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 530 | 156 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 197 | 134 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 111 | 62 | $0 |
| 90970 | Dialysis services, per day, less than full month service (20 years or older) | 97 | 30 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 74 | 74 | $0 |
Insurance plans in this area (ZIP 22401)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | VA | |
| - | VA | |
| Nurse Practitioner | VA | |
| N E P H R O L O G Y | VA | |
| Nephrology, Internal Medicine | VA | |
| N E P H R O L O G Y | NY | |
| Nurse Practitioner | VA | |
| Nephrology, Internal Medicine | VA | |
| Nephrology, Internal Medicine | VA | |
| Nephrology, Internal Medicine | VA |
Reviews
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