Heather Merrow, PAC
Physician Assistant in Supply, 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 149,975 in Physician Assistant, 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Heather Merrow, PAC filed 4,401 Medicare Part D claims in 2023 as a Physician Assistant in Supply, North Carolina, prescribing 88% generic.
- 4K
- Part D claims, 2023
- 88%
- generic prescribing
- $897.4
- industry payments (Sunshine Act)
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.
Heather Merrow, PAC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
4,401 Top 7% higher than 93% 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
What does the federal data show about Heather Merrow, PAC?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in North Carolina
How Physician Assistant compares to other specialties among North Carolina providers
Largest specialties in North Carolina (% of in-state providers)
Physician Assistant ranks #6 among North Carolina's specialties (4.2% of in-state providers)
Each bar is a specialty's share of the North Carolina provider total, by primary NUCC taxonomy. The highlighted bar is Physician Assistant; the long tail of smaller specialties is omitted for legibility.
Specialty board-certification context
Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Physician Assistant ABMS/AOA estimate
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Physician Assistant US NPIs
Specialty board-certified rate — Physician Assistant estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
Heather Merrow, PAC appears in the CMS NPPES registry as a Physician Assistant provider holding PAC credentials at 2930 HOLDEN BEACH RD, Supply, NC, 28462, with a listed phone of (910) 842-5991. NPI 1508834045 was issued on 03/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Merrow 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 4,401 prescription claims written by this provider, covering 217 Medicare beneficiaries and totaling roughly $524K in drug spend, split 11% brand-name and 88% generic by claim count, with an opioid prescribing rate of 3.1%. 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.
Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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 | 1508834045 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PAC |
| Gender | Female |
| NPI Issued | 03/10/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Heather Merrow, PAC's current license status, disciplinary history, and board certifications with the North Carolina Medical Board in North Carolina before relying on this page for a clinical or care decision.
How we sourced this profile
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 Heather Merrow, PAC. Source: openpaymentsdata.cms.gov.
Total received
$897
Largest payer
AstraZeneca Pharmaceuticals LP
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 · Typical
11% brand-name claims vs 88% generic, on 4,401 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
- 10,064
- Total Day Supply
- 292,041
- Brand vs Generic
- 11% brand / 88% generic
- Brand Drug Cost
- $455K
- Generic Drug Cost
- $67K
- Opioid Claims
- 137 (3.1% rate)
- Antibiotic Claims
- 164
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 23, 65-74: 103, 75-84: 80, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Heather Merrow, PAC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
262 claims
- Amlodipine Besylate
Amlodipine Besylate
257 claims
- Lisinopril
Lisinopril
215 claims
- Omeprazole
Omeprazole
167 claims
- Levothyroxine Sodium
Levothyroxine Sodium
165 claims
- Metoprolol Succinate
Metoprolol Succinate
163 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
119 claims
- Metformin Hcl
Metformin Hcl
105 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 262 |
| Amlodipine Besylate | 257 |
| Lisinopril | 215 |
| Omeprazole | 167 |
| Levothyroxine Sodium | 165 |
| Metoprolol Succinate | 163 |
| Rosuvastatin Calcium | 119 |
| Metformin Hcl | 105 |
| Alprazolam | 97 |
| Losartan Potassium | 90 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Heather Merrow, PAC fits within the Physician Assistant landscape nationally.
Heather Merrow, PAC's 4,401 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Merrow.
Compare Physician Assistant 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 Physician Assistant 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
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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.
- 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