Robert Chambers, MD
NPI 1619911039 · Family Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Chambers, MD is a Family Medicine Physician provider in Knoxville, TN (NPI 1619911039).
Provider details
- NPI number
- 1619911039
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 24086 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,850 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 313 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 278 | $116 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 216 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 196 | $13 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 188 | $15 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 638 | 175 |
| Levothyroxine Sodium | 390 | 72 |
| Amlodipine Besylate | 362 | 97 |
| Lisinopril | 266 | 81 |
| Gabapentin | 235 | 41 |
| Rosuvastatin Calcium | 196 | 52 |
| Famotidine | 152 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,299 across 74 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2015-08-06
Frequently asked questions
- What is Robert Chambers's NPI number?
- Robert Chambers's National Provider Identifier (NPI) is 1619911039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Chambers's specialty?
- Robert Chambers is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Chambers located?
- Robert Chambers's practice location on file with NPPES is 1208 Merchant Road, Knoxville, TN 37912-4707.
- What is Robert Chambers's phone number?
- The practice phone number listed in the NPPES registry for Robert Chambers is (865) 688-2522.
- Does Robert Chambers accept Medicare?
- Robert Chambers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Chambers's NPI active?
- Yes — Robert Chambers's NPI (1619911039) is active in the NPPES registry as of the last update on 2015-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.