ROBERT TATUM, M.D.
Obstetrics Physician in KNOXVILLE, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: ROBERT TATUM, M.D. reported a CMS MIPS final score of 89.6389 out of 100, above the 83.1 national average, and filed 356 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
ROBERT TATUM, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
ROBERT TATUM, M.D. at a glance
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Tennessee
How Obstetrics Physician compares to other specialties among Tennessee providers
Obstetrics Physician share within Tennessee
Obstetrics Physician is one of the more visible NUCC categories in Tennessee
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
ROBERT TATUM, M.D.'s 2023 MIPS final score plotted against the Obstetrics Physician national average
- MIPS Final Score
- 89.6389/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics Physician) — 89.6389/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Obstetrics Physician US NPIs
89.6389/100 MIPS final score — 6.5 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Obstetrics Physician. Quality dim: 77.663.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
ROBERT TATUM, M.D. is a Obstetrics Physician provider practicing in KNOXVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1699798884. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
ROBERT TATUM, M.D. appears in the CMS NPPES registry as a Obstetrics Physician provider holding M.D. credentials at 10810 PARKSIDE DR STE 100, KNOXVILLE, TN, 37934, with a listed phone of (865) 218-6660. NPI 1699798884 was issued on 07/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TATUM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 356 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $33K in drug spend, split 12% brand-name and 88% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.6389/100 for the 2023 performance year (Quality 77.663), compared with the national average of 83.1.
Obstetrics Physician is a narrow specialty nationwide, with 1,402 enrolled providers across 54 states and an average of 319 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1699798884 |
|---|---|
| Specialty | Obstetrics Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/26/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm ROBERT TATUM, M.D.'s current license status, disciplinary history, and board certifications with the Tennessee Board of Medical Examiners in Tennessee before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Alternative Payment Model
Brand vs generic prescribing mix · Typical
12% brand-name claims vs 88% generic, on 356 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 859
- Total Day Supply
- 25,039
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $25K
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 68.5 years
- Avg HCC Risk Score
- 0.91
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Estradiol | 176 |
| Medroxyprogesterone Acetate | 35 |
| Valacyclovir Valacyclovir Hcl | 16 |
| Elmiron Pentosan Polysulfate Sodium | 15 |
| Fluconazole | 12 |
| Triamcinolone Acetonide | 11 |
| Progesterone "Progesterone | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics Physician Overview
How ROBERT TATUM, M.D. fits within the Obstetrics Physician landscape nationally.
ROBERT TATUM, M.D.'s 356 claims are above the specialty average of 319.
Nearby Obstetrics Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as TATUM.
Compare Obstetrics Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology