NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1720222425 M.D.
Verify on CMS → Clare Mock, M.D.
Internal Medicine Physician in Hillsborough, North Carolina.
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
96
Medicare Part D claims · 37 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% 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
Clare Mock, M.D. filed 96 Medicare Part D claims in 2023 as an Internal Medicine Physician in Hillsborough, North Carolina, prescribing 89% generic.
- 96
- Part D claims, 2023
- 89%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Clare Mock, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
96 0th percentile higher than 0% 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
✓
Board certification likely (heuristic, not verified)
Clare Mock, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Clare Mock, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
96 96% vs specialty avg
Specialty distribution in North Carolina
How Internal Medicine Physician compares to other specialties among North Carolina 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).
Clare Mock, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 430 WATERSTONE DRIVE, Hillsborough, NC, 27278, with a listed phone of (984) 974-1931. NPI 1720222425 was issued on 04/24/2009.
Medicare Part D records for calendar year 2023 show 96 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $7K in drug spend, split 11% brand-name and 89% 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 | 1720222425 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/24/2009 |
Hospital and facility affiliations
Facilities where Clare Mock, 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.
Wakemed Specialists Group LLC
Raleigh, NC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Clare Mock, M.D. - brand share 11.0%
Internal Medicine Physician average
11% brand-name claims vs 89% generic, on 96 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.
96
Total Claims
$7K
Total Drug Cost
37
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 128
- Total Day Supply
- 2,930
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 2.78
- Gender Split
- 65% female / 35% male
Internal Medicine Physician Overview
How Clare Mock, 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
Clare Mock, M.D.'s 96 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Mock.
Dr. Ana Abaroa-Salvatierra
M.D.
Pollocksville, NC
Dr. Naa Deisa Abbey
MD
Shelby, NC
Dr. Hanie Abdel Masih
D.O.
Rockingham, NC
Dr. Rami Abdo
MD
Durham, NC
Dr. Farhath Abdul Kareem
MD
Cary, NC
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 North Carolina 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore North Carolina
Frequently Asked Questions
What is Clare Mock, M.D.'s specialty? ▼
Clare Mock, M.D. specializes in Internal Medicine Physician and practices in Hillsborough, North Carolina. Credentials: M.D..
How much does Clare Mock, M.D. prescribe under Medicare Part D? ▼
In 2023, Clare Mock, M.D. wrote 96 Medicare Part D claims totaling $7K in drug costs for 37 beneficiaries.
Where is Clare Mock, M.D. located? ▼
Clare Mock, M.D. is located at 430 WATERSTONE DRIVE, Hillsborough, NC, 27278. Phone: (984) 974-1931.
What is Clare Mock, M.D.'s NPI number? ▼
Clare Mock, M.D.'s National Provider Identifier (NPI) is 1720222425, issued on 04/24/2009.
Does Clare Mock, M.D. prescribe more brand-name or generic drugs? ▼
Clare Mock, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $5K 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.
Does Clare Mock, M.D. accept Medicare? ▼
Clare Mock, M.D. appears in CMS Medicare data with 96 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clare Mock, M.D.'s credentials? ▼
Clare Mock, M.D.'s NPI is 1720222425 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.