MARY BAKER, M.D.
Internal Medicine Physician in GEORGETOWN, South Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: MARY BAKER, M.D. reported a CMS MIPS final score of 97.0252 out of 100, above the 83.1 national average, and filed 5,864 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
MARY BAKER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
MARY BAKER, M.D. at a glance
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in South Carolina
How Internal Medicine Physician compares to other specialties among South Carolina providers
Internal Medicine Physician share within South Carolina
Internal Medicine Physician is one of the more visible NUCC categories in South Carolina
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
MARY BAKER, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 97.0252/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) — 97.0252/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Internal Medicine Physician US NPIs
97.0252/100 MIPS final score — 13.9 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Internal Medicine Physician. Quality dim: 94.0503.
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).
MARY BAKER, M.D. is a Internal Medicine Physician provider practicing in GEORGETOWN, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1134431935. 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.
MARY BAKER, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 422 N FRASER ST, GEORGETOWN, SC, 29440, with a listed phone of (843) 436-1333. NPI 1134431935 was issued on 07/08/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER 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 5,864 prescription claims written by this provider, covering 452 Medicare beneficiaries and totaling roughly $389K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.6%. 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 97.0252/100 for the 2023 performance year (Quality 94.0503), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1134431935 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 07/08/2010 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm MARY BAKER, M.D.'s current license status, disciplinary history, and board certifications with the South Carolina Board of Medical Examiners in South Carolina 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: Individual
Hospital and facility affiliations
Facilities where MARY BAKER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 MARY BAKER, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$59
Largest payer
Corcept Therapeutics
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
9% brand-name claims vs 91% generic, on 5,864 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
- 14,239
- Total Day Supply
- 415,789
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $266K
- Generic Drug Cost
- $123K
- Opioid Claims
- 96 (1.6% rate)
- Antibiotic Claims
- 178
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 0.90
- Gender Split
- 71% female / 29% male
- Age Distribution
- <65: 17, 65-74: 214, 75-84: 186, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 363 |
| Levothyroxine Sodium | 209 |
| Simvastatin | 195 |
| Metoprolol Succinate | 183 |
| Amlodipine Besylate | 180 |
| Lisinopril | 177 |
| Pantoprazole Sodium | 152 |
| Hydrochlorothiazide | 143 |
| Escitalopram Oxalate | 134 |
| Losartan Potassium | 133 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How MARY BAKER, M.D. fits within the Internal Medicine Physician landscape nationally.
MARY BAKER, M.D.'s 5,864 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as BAKER.
Compare Internal Medicine Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is MARY BAKER, M.D.'s specialty? ▼
How much does MARY BAKER, M.D. prescribe under Medicare Part D? ▼
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Where is MARY BAKER, M.D. located? ▼
What is MARY BAKER, M.D.'s NPI number? ▼
Does MARY BAKER, M.D. prescribe more brand-name or generic drugs? ▼
Does MARY BAKER, M.D. prescribe opioids? ▼
How many Internal Medicine Physician providers are there in the US? ▼
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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