NPI registry status
Active
2026 NPPES data Gynecology Physician NPI 1649340225 M.D.
Verify on CMS → Susan Gray, M.D.
Gynecology Physician in Columbia, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,912 in Gynecology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
464
Medicare Part D claims · 173 beneficiaries · Gynecology Physician avg: 319
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$25.63
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Susan Gray, M.D. filed 464 Medicare Part D claims in 2024 as a Gynecology Physician in Columbia, Tennessee, prescribing 92% generic.
- 464
- Part D claims, 2024
- 92%
- generic prescribing
- $25.63
- industry payments (Sunshine Act)
- ≥61st
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Susan Gray, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1649340225), first enumerated 11/09/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 464 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$25.63 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Gray with other Gynecology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Tennessee
- Dr. Rony Adam, MD Nashville, TN
- Dr. Wesley Adams, M.D. Bristol, TN
- Dr. Ted Anderson, MD Nashville, TN
- Dr. Leslie Appiah, MD Nashville, TN
- Rena Azar, MD PC FPMRS South Pittsburg, TN
- Dr. Tammy Baker, M.D. Knoxville, TN
Other specialties in Columbia: Mental Health Counselor (93) · Case Manager/Care Coordinator (89) · Family Nurse Practitioner (84) · Pharmacist (66)
CMS NPPES provider registry desk
NPI 1649340225 · Gynecology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1649340225
- ENUM-LEGACY 2006
- TAX-NARROW 3,912
- RX-LIGHT 464
- BOOK-THIN 78 in Tennessee
- PHOTO-ENUM Diana Cheng, M.D. · 2006
Susan Gray, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
464 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Susan Gray, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Susan Gray, M.D.?
Quality data not reportedPrimary specialty
Gynecology Physician
Medicare Part D claims
464 45% vs specialty avg
Specialty distribution in Tennessee
How Gynecology Physician compares to other specialties among Tennessee providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gynecology Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1649340225 |
|---|---|
| Specialty | Gynecology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 11/09/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Susan Gray, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$26
Largest payer
Tempus AI, Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Susan Gray, M.D. - brand share 8.0%
Gynecology Physician average
8% brand-name claims vs 92% generic, on 464 2024 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 2024.
464
Total Claims
$26K
Total Drug Cost
173
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 961.267
- Total Day Supply
- 26,126
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $13K
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 0.70
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Susan Gray, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Alendronate Sodium
Alendronate Sodium
67 claims
- Estradiol
Estradiol
60 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
40 claims
- Levothyroxine Sodium
Levothyroxine Sodium
27 claims
- Valacyclovir 26
Valacyclovir
26 claims
- Microgestin Fe 18
Microgestin Fe
18 claims
- Clobetasol Propion… 17
Clobetasol Propionate
17 claims
- Paroxetine Hcl 16
Paroxetine Hcl
16 claims
| Drug | Claims |
|---|---|
| Alendronate Sodium | 67 |
| Estradiol | 60 |
| Triamcinolone Acetonide | 40 |
| Levothyroxine Sodium | 27 |
| Valacyclovir Valacyclovir Hcl | 26 |
| Microgestin Fe Norethindrone-E.Estradiol-Iron | 18 |
| Clobetasol Propionate | 17 |
| Paroxetine Hcl | 16 |
| Raloxifene Hcl | 14 |
| Medroxyprogesterone Acetate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecology Physician Overview
How Susan Gray, M.D. fits within the Gynecology Physician landscape nationally.
3,912
Gynecology Physician Providers in US
53
States with Gynecology Physician
319
Avg Claims per Provider
Susan Gray, M.D.'s 464 claims are above the specialty average of 319.
Nationwide Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Gray, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gynecology Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Gray.
One of 78 Gynecology Physician providers enrolled in Tennessee, 11 are shown on this page.
Dr. Charles Barker
M.D.
Altamont, TN
Dr. Michael Bishop
M.D.
Franklin, TN
Dr. Todd Boren
M.D.
Chattanooga, TN
Dr. C Bowling
MD
Knoxville, TN
Dr. Gary Boyle
M.D.
Bristol, TN
Compare Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Susan Gray, M.D.'s specialty? ▼
Susan Gray, M.D. specializes in Gynecology Physician and practices in Columbia, Tennessee. Credentials: M.D..
How much does Susan Gray, M.D. prescribe under Medicare Part D? ▼
In 2024, Susan Gray, M.D. wrote 464 Medicare Part D claims totaling $26K in drug costs for 173 beneficiaries.
Where is Susan Gray, M.D. located? ▼
Susan Gray, M.D. is located at 1394 HATCHER LN, Columbia, TN, 38401. Phone: (931) 380-1030.
What is Susan Gray, M.D.'s NPI number? ▼
Susan Gray, M.D.'s National Provider Identifier (NPI) is 1649340225, issued on 11/09/2006.
Does Susan Gray, M.D. prescribe more brand-name or generic drugs? ▼
Susan Gray, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $13K in brand drug costs.
How many Gynecology Physician providers are there in the US? ▼
There are 3,912 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 319 Medicare Part D claims per year.
What drugs does Susan Gray, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Susan Gray, M.D.'s most frequently prescribed drugs include Alendronate Sodium, Estradiol, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susan Gray, M.D. accept Medicare? ▼
Susan Gray, M.D. appears in CMS Medicare data with 464 Part D claims and 173 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susan Gray, M.D.'s credentials? ▼
Susan Gray, M.D.'s NPI is 1649340225 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.