2026 NPPES data Adult Health Nurse Practitioner NPI 1477898807 CNP
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Karen Neeb, CNP

Adult Health Nurse Practitioner in Ann Arbor, 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 29,492 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
1K
Medicare Part D claims · 211 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Karen Neeb, CNP filed 1,142 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in Ann Arbor, Michigan, prescribing 86% generic.

1K
Part D claims, 2023
86%
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.

Karen Neeb, CNP's Medicare Part D volume vs every U.S. prescriber

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

1,142 Top 23% higher than 77% 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%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. 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 Karen Neeb, CNP?

Quality data not reported

NPI registry status

Active

Issued 12/12/2012

NPI 1477898807

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

1,142 5% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in Michigan

How Adult Health Nurse Practitioner compares to other specialties among Michigan providers

Michigan providers
Behavior Technician - 21.4%Behavior Technician21.4%Clinical Social Worker - 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program - 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist - 3.4%Physical Therapist3.4%Social Worker - 3.4%Social Worker3.4%Pharmacist - 3%Pharmacist3%Adult Health Nurse Practitioner - 0.3%Adult Health Nurse Practitioner0.3%
Largest specialties in Michigan (% of in-state 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:

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).

Karen Neeb, CNP appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding CNP credentials at 4260 PLYMOUTH RD, Ann Arbor, MI, 48109, with a listed phone of (734) 764-6831. NPI 1477898807 was issued on 12/12/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Neeb 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 1,142 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $66K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 4.3%. 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.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

4260 PLYMOUTH RD
Ann Arbor, MI 48109

Provider Details

NPI 1477898807
Specialty Adult Health Nurse Practitioner
Credentials CNP
Gender Female
NPI Issued 12/12/2012

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 Karen Neeb, CNP. To verify Karen Neeb, CNP'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

Karen Neeb, CNP - brand share 13.0%
Adult Health Nurse Practitioner average

13% brand-name claims vs 86% generic, on 1,142 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.

1,142
Total Claims
$66K
Total Drug Cost
211
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,233
Total Day Supply
30,176
Brand vs Generic
13% brand / 86% generic
Brand Drug Cost
$44K
Generic Drug Cost
$22K
Opioid Claims
49 (4.3% rate)
Antibiotic Claims
22

Patient Demographics

Average Patient Age
77.9 years
Avg HCC Risk Score
2.58
Gender Split
64% female / 36% male
Age Distribution
<65: 18, 65-74: 52, 75-84: 82, 85+: 59

Top Prescribed Drugs (Medicare Part D)

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

What Karen Neeb, CNP 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
Gabapentin
57
Atorvastatin Calcium
44
Lisinopril
42
Pantoprazole Sodium
39
Amlodipine Besylate
28
Albuterol Sulfate Hfa
Albuterol Sulfate
24
Levothyroxine Sodium
24
Warfarin Sodium
23
Eliquis
Apixaban
21
Enoxaparin Sodium
21

* 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 Karen Neeb, CNP fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

Karen Neeb, CNP's 1,142 claims are below the specialty average of 1,201.

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 Neeb.

Compare Adult Health Nurse Practitioner 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 Michigan medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Adult Health Nurse Practitioner 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.

Frequently Asked Questions

What is Karen Neeb, CNP's specialty?
Karen Neeb, CNP specializes in Adult Health Nurse Practitioner and practices in Ann Arbor, Michigan. Credentials: CNP.
How much does Karen Neeb, CNP prescribe under Medicare Part D?
In 2023, Karen Neeb, CNP wrote 1,142 Medicare Part D claims totaling $66K in drug costs for 211 beneficiaries.
Where is Karen Neeb, CNP located?
Karen Neeb, CNP is located at 4260 PLYMOUTH RD, Ann Arbor, MI, 48109. Phone: (734) 764-6831.
What is Karen Neeb, CNP's NPI number?
Karen Neeb, CNP's National Provider Identifier (NPI) is 1477898807, issued on 12/12/2012.
Does Karen Neeb, CNP prescribe more brand-name or generic drugs?
Karen Neeb, CNP's prescribing is 13% brand-name and 86% generic drugs by claim count, with $44K in brand drug costs.
Does Karen Neeb, CNP prescribe opioids?
Yes, Karen Neeb, CNP had 49 opioid claims in 2023 with an opioid prescribing rate of 4.3%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does Karen Neeb, CNP prescribe most often?
Based on 2023 Medicare Part D data, Karen Neeb, CNP's most frequently prescribed drugs include Gabapentin, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Neeb, CNP accept Medicare?
Karen Neeb, CNP appears in CMS Medicare data with 1,142 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Neeb, CNP's credentials?
Karen Neeb, CNP's NPI is 1477898807 with credentials CNP. 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

Compiled from official public sources by the PlainDoctor editorial team.