DR. GLENDA B SINGLETON (M.D.) – Internal Medicine Physician, NPI 1144285438
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,996 INTERNAL MEDICINE in CO
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Provider Addresses for DR. GLENDA B SINGLETON (M.D.)
3601 S CLARKSON ST STE 100
ENGLEWOOD, CO 801133945
Phone: (303) 788-4662
Fax: (303) 794-6131
Type: Mailing
601, East Hampden Avenue, Englewood, Arapahoe County, Colorado, 80113, United States
# 430
ENGLEWOOD, CO 801133781
Phone: (303) 788-8355
Fax: (303) 788-4448
Type: Location
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.
This can happen when there are no reportable CMS Open Payments records.
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: 2010-09-14
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 |
|---|---|---|---|---|
| I20100914000616 | I | Internal Medicine | CO | 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 | 538 | 224 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 163 | 130 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 90 | 86 | $0 |
| 99497 | Advance care planning, first 30 minutes | 87 | 85 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 30 | 30 | $0 |
Insurance plans in this area (ZIP 80113)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Medicine And Rehabilitation | CO | |
| Physical Medicine And Rehabilitation | PA | |
| Internal Medicine | CO | |
| Internal Medicine | CO | |
| Physical Medicine And Rehabilitation | CO | |
| Internal Medicine | NH | |
| Hospitalist, Internal Medicine | CO | |
| Physician Assistant | CO | |
| Internal Medicine | CO | |
| Physical Medicine And Rehabilitation | CO |
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