NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1760563845 M.D.
Verify on CMS → Janet Memark, M.D.
Internal Medicine Physician in Marietta, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal 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
303
Medicare Part D claims · 155 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
25%
generic claims · 75% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Janet Memark, M.D. filed 303 Medicare Part D claims in 2023 as an Internal Medicine Physician in Marietta, Georgia, prescribing 25% generic.
- 303
- Part D claims, 2023
- 25%
- generic prescribing
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.
Janet Memark, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
303 Top 43% higher than 57% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
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Board-eligible specialty (heuristic, not verified)
Janet Memark, 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 Janet Memark, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
303 89% vs specialty avg
Specialty distribution in Georgia
How Internal Medicine Physician compares to other specialties among Georgia 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 Internal 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).
Janet Memark, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 1650 COUNTY SERVICES PARKWAY, Marietta, GA, 30008, with a listed phone of (770) 739-3214. NPI 1760563845 was issued on 10/17/2006.
Medicare Part D records for calendar year 2023 show 303 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $40K in drug spend, split 75% brand-name and 25% generic by claim count.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 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 | 1760563845 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 10/17/2006 |
Brand vs generic prescribing mix · Brand-heavy
Janet Memark, M.D. - brand share 75.0%
Internal Medicine Physician average
75% brand-name claims vs 25% generic, on 303 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.
303
Total Claims
$40K
Total Drug Cost
155
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 325
- Total Day Supply
- 3,116
- Brand vs Generic
- 75% brand / 25% generic
- Brand Drug Cost
- $36K
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 69.0 years
- Avg HCC Risk Score
- 0.86
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Janet Memark, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Shingrix
Shingrix
39 claims
- Typhim Vi
Typhim Vi
39 claims
- Atovaquone-Proguan…
Atovaquone-Proguanil Hcl
36 claims
- Havrix
Havrix
24 claims
- Twinrix
Twinrix
23 claims
- Mefloquine Hcl 12
Mefloquine Hcl
12 claims
- Vienva 11
Vienva
11 claims
| Drug | Claims |
|---|---|
| Shingrix Varicella-Zoster Ge/As01b/Pf | 39 |
| Typhim Vi Typhoid Vi Polysacch Vaccine | 39 |
| Atovaquone-Proguanil Hcl Atovaquone/Proguanil Hcl | 36 |
| Havrix Hepatitis A Virus Vaccine/Pf | 24 |
| Twinrix Hepatitis A And B Vaccine/Pf | 23 |
| Mefloquine Hcl | 12 |
| Vienva Levonorgestrel/Ethin.Estradiol | 11 |
| Adacel Tdap "Diph | N/A |
| Menquadfi "Mening Vac A | N/A |
* 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 Janet Memark, M.D. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Janet Memark, M.D.'s 303 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Memark.
Dr. Ugochi Abazie
M.D
Riverdale, GA
Dr. Muhammad Abbasi
M.D.
Covington, GA
Rahat Abbasi
Augusta, GA
Dr. Diane Abby Burr
D.O.
Carrollton, GA
Dr. Bsmah Abdalslam
M.D
Austell, GA
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Georgia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Janet Memark, M.D.'s specialty? ▼
Janet Memark, M.D. specializes in Internal Medicine Physician and practices in Marietta, Georgia. Credentials: M.D..
How much does Janet Memark, M.D. prescribe under Medicare Part D? ▼
In 2023, Janet Memark, M.D. wrote 303 Medicare Part D claims totaling $40K in drug costs for 155 beneficiaries.
Where is Janet Memark, M.D. located? ▼
Janet Memark, M.D. is located at 1650 COUNTY SERVICES PARKWAY, Marietta, GA, 30008. Phone: (770) 739-3214.
What is Janet Memark, M.D.'s NPI number? ▼
Janet Memark, M.D.'s National Provider Identifier (NPI) is 1760563845, issued on 10/17/2006.
Does Janet Memark, M.D. prescribe more brand-name or generic drugs? ▼
Janet Memark, M.D.'s prescribing is 75% brand-name and 25% generic drugs by claim count, with $36K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Janet Memark, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Janet Memark, M.D.'s most frequently prescribed drugs include Shingrix, Typhim Vi, Atovaquone-Proguanil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Janet Memark, M.D. accept Medicare? ▼
Janet Memark, M.D. appears in CMS Medicare data with 303 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Janet Memark, M.D.'s credentials? ▼
Janet Memark, M.D.'s NPI is 1760563845 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 (2023). 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 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
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 May 2026.