2026 NPPES data Gerontology Nurse Practitioner NPI 1104402114
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CATHRYN GRIEPENTROG

Gerontology Nurse Practitioner in MESA, Arizona. 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
4K
Medicare Part D claims · 171 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.7673/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: CATHRYN GRIEPENTROG is a Gerontology Nurse Practitioner ([object Object]) practicing in MESA, Arizona with a Medicare Part D prescribing footprint of 4K claims across 171 beneficiaries — 10% brand-name prescribing . Their CMS MIPS Final Score of 78.7673/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: CATHRYN GRIEPENTROG reported a CMS MIPS final score of 78.7673 out of 100, below the 83.1 national average, and filed 3,697 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CATHRYN GRIEPENTROG at a glance

Near national average

NPI registry status

Active

Issued 03/20/2021

NPI 1104402114

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

3,697 188% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

MIPS final score

78.7673/100 4.3326999999999884% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Arizona

How Gerontology Nurse Practitioner compares to other specialties among Arizona providers

Arizona providers

Gerontology Nurse Practitioner share within Arizona

1. Gerontology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Nurse Practitioner share within Arizona

Medicare quality performance — MIPS

CATHRYN GRIEPENTROG's 2023 MIPS final score plotted against the Gerontology Nurse Practitioner national average

Near national average
MIPS Final Score
78.7673/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gerontology Nurse Practitioner) — 78.7673/100 vs national avg 83.1

0%100%National avg83%78.8%
MIPS final score (Gerontology Nurse Practitioner) — 78.7673/100 vs national avg 83.1

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).

CATHRYN GRIEPENTROG is a Gerontology Nurse Practitioner provider practicing in MESA, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1104402114. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CATHRYN GRIEPENTROG appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider at 7227 E BASELINE RD STE 129, MESA, AZ, 85209, with a listed phone of (435) 514-5646. NPI 1104402114 was issued on 03/20/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIEPENTROG 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 3,697 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $214K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 1.7%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.7673/100 for the 2023 performance year (Quality 74.8325, Cost 62.8014), compared with the national average of 83.1.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

7227 E BASELINE RD STE 129
MESA, AZ 85209

Provider Details

NPI 1104402114
Specialty Gerontology Nurse Practitioner
Gender Female
NPI Issued 03/20/2021

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.7673
Final Score
Avg: 83.1
74.8325
Quality
62.8014
Cost
69
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CATHRYN GRIEPENTROG 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.

ATLAS MEDICAL ACO LLC
MESA, AZ
CENTURY CARE INC
MESA, AZ

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

CATHRYN GRIEPENTROG — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 3,697 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.

3,697
Total Claims
$214K
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,138
Total Day Supply
109,721
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$142K
Generic Drug Cost
$72K
Opioid Claims
62 (1.7% rate)
Antibiotic Claims
85

Patient Demographics

Average Patient Age
83.2 years
Avg HCC Risk Score
2.16
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
204
Trazodone Hcl
153
Amlodipine Besylate
150
Atorvastatin Calcium
132
Donepezil Hcl
122
Pantoprazole Sodium
113
Furosemide
104
Lisinopril
94
Quetiapine Fumarate
88
Escitalopram Oxalate
82

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

Gerontology Nurse Practitioner Overview

How CATHRYN GRIEPENTROG fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

CATHRYN GRIEPENTROG's 3,697 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Arizona

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

Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CATHRYN GRIEPENTROG's specialty?
CATHRYN GRIEPENTROG specializes in Gerontology Nurse Practitioner and practices in MESA, Arizona.
How much does CATHRYN GRIEPENTROG prescribe under Medicare Part D?
In 2023, CATHRYN GRIEPENTROG wrote 3,697 Medicare Part D claims totaling $214K in drug costs for 171 beneficiaries.
What is CATHRYN GRIEPENTROG's Medicare quality score?
CATHRYN GRIEPENTROG has a CMS MIPS Final Score of 78.7673/100 (Quality: 74.8325, Cost: 62.8014). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CATHRYN GRIEPENTROG located?
CATHRYN GRIEPENTROG is located at 7227 E BASELINE RD STE 129, MESA, AZ, 85209. Phone: (435) 514-5646.
What is CATHRYN GRIEPENTROG's NPI number?
CATHRYN GRIEPENTROG's National Provider Identifier (NPI) is 1104402114, issued on 03/20/2021.
Does CATHRYN GRIEPENTROG prescribe more brand-name or generic drugs?
CATHRYN GRIEPENTROG's prescribing is 10% brand-name and 90% generic drugs by claim count, with $142K in brand drug costs.
Does CATHRYN GRIEPENTROG prescribe opioids?
Yes, CATHRYN GRIEPENTROG had 62 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does CATHRYN GRIEPENTROG prescribe most often?
Based on 2023 Medicare Part D data, CATHRYN GRIEPENTROG's most frequently prescribed drugs include Levothyroxine Sodium, Trazodone Hcl, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHRYN GRIEPENTROG accept Medicare?
CATHRYN GRIEPENTROG appears in CMS Medicare data with 3,697 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHRYN GRIEPENTROG's credentials?
CATHRYN GRIEPENTROG's NPI is 1104402114. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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