NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1447786207 MSN AGPCNP-C
Verify on CMS → Katherine Holyfield, MSN AGPCNP-C
Adult Health Nurse Practitioner in Waterford, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,811 in Adult Health Nurse Practitioner, 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
3K
Medicare Part D claims · 242 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% 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
Katherine Holyfield, MSN AGPCNP-C filed 3,000 Medicare Part D claims in 2024 as an Adult Health Nurse Practitioner in Waterford, Michigan, prescribing 91% generic.
- 3K
- Part D claims, 2024
- 91%
- generic prescribing
- ≥88th
- 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 Katherine Holyfield, MSN AGPCNP-C
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 1447786207), first enumerated 05/11/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,000 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not Katherine Holyfield, MSN AGPCNP-C's individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- 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 1447786207 · Adult Health Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1447786207
- ENUM-RECENT 2017
- TAX-MID 30K Adult Health
- RX-MID 3,000
- BOOK-LIGHT 811 in Michigan
- PHOTO-ENUM Linda Sta. Maria · 2017
Katherine Holyfield, MSN AGPCNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
3,000 ≥ 88th percentile 88% 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
What does the federal data show about Katherine Holyfield, MSN AGPCNP-C?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
3,000 132% vs specialty avg
Specialty distribution in Michigan
How Adult Health Nurse Practitioner compares to other specialties among Michigan 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 Adult Health Nurse Practitioner. 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 | 1447786207 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | MSN AGPCNP-C |
| Gender | Female |
| NPI Issued | 05/11/2017 |
Hospital and facility affiliations
Facilities where Katherine Holyfield, MSN AGPCNP-C 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.
Transitional Care Services LLC
Waterford, MI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Katherine Holyfield, MSN AGPCNP-C. To verify Katherine Holyfield, MSN AGPCNP-C's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Katherine Holyfield, MSN AGPCNP-C - brand share 9.0%
Adult Health Nurse Practitioner average
9% brand-name claims vs 91% generic, on 3,000 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.
3,000
Total Claims
$188K
Total Drug Cost
242
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,370.933
- Total Day Supply
- 123,069
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $134K
- Generic Drug Cost
- $53K
- Opioid Claims
- 110 (3.7% rate)
- Antibiotic Claims
- 101
Patient Demographics
- Average Patient Age
- 79.7 years
- Avg HCC Risk Score
- 2.24
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 21, 65-74: 51, 75-84: 80, 85+: 90
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Katherine Holyfield, MSN AGPCNP-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
128 claims
- Gabapentin
Gabapentin
118 claims
- Levothyroxine Sodium
Levothyroxine Sodium
113 claims
- Quetiapine Fumarate
Quetiapine Fumarate
89 claims
- Furosemide
Furosemide
77 claims
- Losartan Potassium
Losartan Potassium
77 claims
- Amlodipine Besylate
Amlodipine Besylate
74 claims
- Sertraline Hcl
Sertraline Hcl
68 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 128 |
| Gabapentin | 118 |
| Levothyroxine Sodium | 113 |
| Quetiapine Fumarate | 89 |
| Furosemide | 77 |
| Losartan Potassium | 77 |
| Amlodipine Besylate | 74 |
| Sertraline Hcl | 68 |
| Metoprolol Succinate | 62 |
| Escitalopram Oxalate | 61 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Katherine Holyfield, MSN AGPCNP-C fits within the Adult Health Nurse Practitioner landscape nationally.
29,811
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,291
Avg Claims per Provider
Katherine Holyfield, MSN AGPCNP-C's 3,000 claims are above the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Holyfield, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Holyfield.
One of 811 Adult Health Nurse Practitioner providers enrolled in Michigan, 5 are shown here.
Joanne Abbas
Dearborn, MI
Nicole Abbgy
NP
Grand Rapids, MI
Ancy Abraham
NP-C
Lansing, MI
Sharnice Adams
NP
Saginaw, MI
Tina Adkins
Southgate, MI
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Katherine Holyfield, MSN AGPCNP-C's specialty? ▼
Katherine Holyfield, MSN AGPCNP-C specializes in Adult Health Nurse Practitioner and practices in Waterford, Michigan. Credentials: MSN AGPCNP-C.
How much does Katherine Holyfield, MSN AGPCNP-C prescribe under Medicare Part D? ▼
In 2024, Katherine Holyfield, MSN AGPCNP-C wrote 3,000 Medicare Part D claims totaling $188K in drug costs for 242 beneficiaries.
Where is Katherine Holyfield, MSN AGPCNP-C located? ▼
Katherine Holyfield, MSN AGPCNP-C is located at 5758 COOLEY LAKE RD, Waterford, MI, 48327. Phone: (855) 466-3631.
What is Katherine Holyfield, MSN AGPCNP-C's NPI number? ▼
Katherine Holyfield, MSN AGPCNP-C's National Provider Identifier (NPI) is 1447786207, issued on 05/11/2017.
Does Katherine Holyfield, MSN AGPCNP-C prescribe more brand-name or generic drugs? ▼
Katherine Holyfield, MSN AGPCNP-C's prescribing is 9% brand-name and 91% generic drugs by claim count, with $134K in brand drug costs.
Does Katherine Holyfield, MSN AGPCNP-C prescribe opioids? ▼
Yes, Katherine Holyfield, MSN AGPCNP-C had 110 opioid claims in 2024 with an opioid prescribing rate of 3.7%.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,811 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,291 Medicare Part D claims per year.
What drugs does Katherine Holyfield, MSN AGPCNP-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Katherine Holyfield, MSN AGPCNP-C's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katherine Holyfield, MSN AGPCNP-C accept Medicare? ▼
Katherine Holyfield, MSN AGPCNP-C appears in CMS Medicare data with 3,000 Part D claims and 242 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Holyfield, MSN AGPCNP-C's credentials? ▼
Katherine Holyfield, MSN AGPCNP-C's NPI is 1447786207 with credentials MSN AGPCNP-C. 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.