NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1447519400 M.D.
Verify on CMS → Holly Chambliss, M.D.
Family Medicine Physician in Tuscaloosa, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,125 in Family Medicine 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
771
Medicare Part D claims · 116 beneficiaries · Family Medicine Physician avg: 4K
Generic prescribing
90%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Holly Chambliss, M.D. filed 771 Medicare Part D claims in 2024 as a Family Medicine Physician in Tuscaloosa, Alabama, prescribing 90% generic.
- 771
- Part D claims, 2024
- 90%
- generic prescribing
- ≥70th
- 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 Holly Chambliss, 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 1447519400), first enumerated 05/11/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 771 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.
- 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.
CMS NPPES provider registry desk
NPI 1447519400 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1447519400
- ENUM-MID 2012
- TAX-MEGA 150K Family Medicine
- RX-LIGHT 771
- BOOK-LIGHT 1,888 in Alabama
- PHOTO-ENUM Vaughn Harris · 2012
Holly Chambliss, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
771 ≥ 70th percentile 70% 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)
Holly Chambliss, 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 Holly Chambliss, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
771 78% vs specialty avg
Specialty distribution in Alabama
How Family Medicine Physician compares to other specialties among Alabama 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 Family Medicine 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 | 1447519400 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 05/11/2012 |
Brand vs generic prescribing mix · Generic-heavy
Holly Chambliss, M.D. - brand share 8.0%
Family Medicine Physician average
8% brand-name claims vs 90% generic, on 771 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.
771
Total Claims
$48K
Total Drug Cost
116
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,566.8
- Total Day Supply
- 45,903
- Brand vs Generic
- 8% brand / 90% generic
- Brand Drug Cost
- $34K
- Generic Drug Cost
- $13K
- Opioid Claims
- 31 (4.0% rate)
Patient Demographics
- Average Patient Age
- 63.9 years
- Avg HCC Risk Score
- 1.59
- Gender Split
- 77% female / 23% male
- Age Distribution
- <65: 50, 65-74: 48, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Holly Chambliss, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
38 claims
- Metformin Hcl
Metformin Hcl
38 claims
- Atorvastatin Calcium
Atorvastatin Calcium
32 claims
- Gabapentin
Gabapentin
28 claims
- Levothyroxine Sodium
Levothyroxine Sodium
25 claims
- Hydrochlorothiazide
Hydrochlorothiazide
23 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
21 claims
- Lisinopril
Lisinopril
21 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 38 |
| Metformin Hcl | 38 |
| Atorvastatin Calcium | 32 |
| Gabapentin | 28 |
| Levothyroxine Sodium | 25 |
| Hydrochlorothiazide | 23 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 21 |
| Lisinopril | 21 |
| Pravastatin Sodium | 21 |
| Metoprolol Succinate | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Holly Chambliss, M.D. fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Holly Chambliss, M.D.'s 771 claims are below the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chambliss, both outside Alabama so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Chambliss.
One of 1,888 Family Medicine Physician providers enrolled in Alabama, 5 are shown here.
Dr. Anbreen Abbas
MD
Gadsden, AL
Dr. Bahaa Abdelqader
DO
Mobile, AL
Dr. Sumayah Abed
MD
Hoover, AL
Dr. Charles Abney
M.D.
Tuscaloosa, AL
Dr. Jennifer Abt
DO
Montgomery, AL
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Holly Chambliss, M.D.'s specialty? ▼
Holly Chambliss, M.D. specializes in Family Medicine Physician and practices in Tuscaloosa, Alabama. Credentials: M.D..
How much does Holly Chambliss, M.D. prescribe under Medicare Part D? ▼
In 2024, Holly Chambliss, M.D. wrote 771 Medicare Part D claims totaling $48K in drug costs for 116 beneficiaries.
Where is Holly Chambliss, M.D. located? ▼
Holly Chambliss, M.D. is located at 750 PETER BRYCE BLVD, Tuscaloosa, AL, 35401. Phone: (205) 348-6262.
What is Holly Chambliss, M.D.'s NPI number? ▼
Holly Chambliss, M.D.'s National Provider Identifier (NPI) is 1447519400, issued on 05/11/2012.
Does Holly Chambliss, M.D. prescribe more brand-name or generic drugs? ▼
Holly Chambliss, M.D.'s prescribing is 8% brand-name and 90% generic drugs by claim count, with $34K in brand drug costs.
Does Holly Chambliss, M.D. prescribe opioids? ▼
Yes, Holly Chambliss, M.D. had 31 opioid claims in 2024 with an opioid prescribing rate of 4.0%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Holly Chambliss, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Holly Chambliss, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Metformin Hcl, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Holly Chambliss, M.D. accept Medicare? ▼
Holly Chambliss, M.D. appears in CMS Medicare data with 771 Part D claims and 116 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Holly Chambliss, M.D.'s credentials? ▼
Holly Chambliss, M.D.'s NPI is 1447519400 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.