2026 NPPES data Physician Assistant NPI 1134238348 PA-C
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NANCY HERCK, PA-C

Physician Assistant in LANSE, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 243 beneficiaries · Physician Assistant avg: 790
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

NANCY HERCK, PA-C filed 3,345 Medicare Part D claims in 2023 as a Physician Assistant in LANSE, Michigan, prescribing 89% generic.

3K
Part D claims, 2023
89%
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.

NANCY HERCK, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

3,345 Top 10% higher than 90% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 NANCY HERCK, PA-C?

Quality data not reported

NPI registry status

Active

Issued 08/30/2006

NPI 1134238348

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

3,345 323% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Michigan

How Physician Assistant compares to other specialties among Michigan providers

Michigan providers

Physician Assistant share within Michigan

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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).

NANCY HERCK, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 18341 US HIGHWAY 41, LANSE, MI, 49946, with a listed phone of (906) 524-6118. NPI 1134238348 was issued on 08/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HERCK 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 3,345 prescription claims written by this provider, covering 243 Medicare beneficiaries and totaling roughly $310K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 8.4%. 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

18341 US HIGHWAY 41
LANSE, MI 49946

Provider Details

NPI 1134238348
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 08/30/2006

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 NANCY HERCK, PA-C. To verify NANCY HERCK, PA-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 · Typical

NANCY HERCK, PA-C — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 3,345 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.

3,345
Total Claims
$310K
Total Drug Cost
243
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,984
Total Day Supply
203,907
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$243K
Generic Drug Cost
$66K
Opioid Claims
282 (8.4% rate)
Antibiotic Claims
90

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
0.95
Gender Split
76% female / 24% male
Age Distribution
<65: 37, 65-74: 119, 75-84: 67, 85+: 20

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What NANCY HERCK, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levothyroxine Sodium
119
Atorvastatin Calcium
118
Hydrochlorothiazide
115
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
100
Omeprazole
98
Lisinopril
97
Amlodipine Besylate
93
Metoprolol Succinate
93
Gabapentin
87
Losartan Potassium
85

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How NANCY HERCK, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

NANCY HERCK, PA-C's 3,345 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as HERCK.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is NANCY HERCK, PA-C's specialty?
NANCY HERCK, PA-C specializes in Physician Assistant and practices in LANSE, Michigan. Credentials: PA-C.
How much does NANCY HERCK, PA-C prescribe under Medicare Part D?
In 2023, NANCY HERCK, PA-C wrote 3,345 Medicare Part D claims totaling $310K in drug costs for 243 beneficiaries.
Where is NANCY HERCK, PA-C located?
NANCY HERCK, PA-C is located at 18341 US HIGHWAY 41, LANSE, MI, 49946. Phone: (906) 524-6118.
What is NANCY HERCK, PA-C's NPI number?
NANCY HERCK, PA-C's National Provider Identifier (NPI) is 1134238348, issued on 08/30/2006.
Does NANCY HERCK, PA-C prescribe more brand-name or generic drugs?
NANCY HERCK, PA-C's prescribing is 11% brand-name and 89% generic drugs by claim count, with $243K in brand drug costs.
Does NANCY HERCK, PA-C prescribe opioids?
Yes, NANCY HERCK, PA-C had 282 opioid claims in 2023 with an opioid prescribing rate of 8.4%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does NANCY HERCK, PA-C prescribe most often?
Based on 2023 Medicare Part D data, NANCY HERCK, PA-C's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY HERCK, PA-C accept Medicare?
NANCY HERCK, PA-C appears in CMS Medicare data with 3,345 Part D claims and 243 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY HERCK, PA-C's credentials?
NANCY HERCK, PA-C's NPI is 1134238348 with credentials PA-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

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