2026 NPPES data Orthopedic Registered Nurse NPI 1447751540 ACAGNP
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CRYSTAL HAMLIN, ACAGNP

Orthopedic Registered Nurse in TUCSON, 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
2K
Medicare Part D claims · 354 beneficiaries · Orthopedic Registered Nurse avg: 568
Generic prescribing
99%
generic claims · 1% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]

What the federal data shows

CRYSTAL HAMLIN, ACAGNP reported a CMS MIPS final score of 100/100 — above the 83.1 national average — and filed 1,593 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
2K
Part D claims, 2023
99%
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.

CRYSTAL HAMLIN, ACAGNP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

100 Top 7% higher than 93% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about CRYSTAL HAMLIN, ACAGNP?

High performer (top quartile)

NPI registry status

Active

Issued 02/23/2018

NPI 1447751540

Primary specialty

Orthopedic Registered Nurse

Rare

283 US NPIs in this specialty

Medicare Part D claims

1,593 180% vs specialty avg

2023 prescription claims

Specialty avg: 568

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Arizona

How Orthopedic Registered Nurse compares to other specialties among Arizona providers

Arizona providers

Orthopedic Registered Nurse share within Arizona

1. Orthopedic Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopedic Registered Nurse share within Arizona

Medicare quality performance — MIPS

CRYSTAL HAMLIN, ACAGNP's 2023 MIPS final score plotted against the Orthopedic Registered Nurse national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Orthopedic Registered Nurse) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Orthopedic Registered Nurse) — 100/100 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).

CRYSTAL HAMLIN, ACAGNP appears in the CMS NPPES registry as a Orthopedic Registered Nurse provider holding ACAGNP credentials at 5301 E GRANT RD, TUCSON, AZ, 85712, with a listed phone of (520) 784-6200. NPI 1447751540 was issued on 02/23/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMLIN 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 1,593 prescription claims written by this provider, covering 354 Medicare beneficiaries and totaling roughly $22K in drug spend, split 1% brand-name and 99% generic by claim count, with an opioid prescribing rate of 27.6%. 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 100/100 for the 2023 performance year, compared with the national average of 83.1.

Orthopedic Registered Nurse is a narrow specialty nationwide, with 283 enrolled providers across 48 states and an average of 568 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

5301 E GRANT RD
TUCSON, AZ 85712

Provider Details

NPI 1447751540
Specialty Orthopedic Registered Nurse
Credentials ACAGNP
Gender Female
NPI Issued 02/23/2018

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CRYSTAL HAMLIN, ACAGNP 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.

TUCSON ORTHOPAEDIC INSTITUTE PROFESSIONAL CORPORATION
TUCSON, 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 · Generic-heavy

CRYSTAL HAMLIN, ACAGNP — brand share 1.0%
Specialty average (est.)

1% brand-name claims vs 99% generic, on 1,593 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.

1,593
Total Claims
$22K
Total Drug Cost
354
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,777
Total Day Supply
42,911
Brand vs Generic
1% brand / 99% generic
Brand Drug Cost
$4K
Generic Drug Cost
$18K
Opioid Claims
439 (27.6% rate)

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.20
Gender Split
61% female / 39% male
Age Distribution
<65: 39, 65-74: 170, 75-84: 126, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

What CRYSTAL HAMLIN, ACAGNP 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
Meloxicam
391
Gabapentin
291
Oxycodone Hcl
223
Pregabalin
91
Tramadol Hcl
90
Methocarbamol
89
Diclofenac Sodium
69
Methylprednisolone
63
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
56
Tizanidine Hcl
42

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

Orthopedic Registered Nurse Overview

How CRYSTAL HAMLIN, ACAGNP fits within the Orthopedic Registered Nurse landscape nationally.

283
Orthopedic Registered Nurse Providers in US
48
States with Orthopedic Registered Nurse
568
Avg Claims per Provider

CRYSTAL HAMLIN, ACAGNP's 1,593 claims are above the specialty average of 568.

Nearby Orthopedic Registered Nurse Providers in Arizona

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

Compare Orthopedic Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is CRYSTAL HAMLIN, ACAGNP's specialty?
CRYSTAL HAMLIN, ACAGNP specializes in Orthopedic Registered Nurse and practices in TUCSON, Arizona. Credentials: ACAGNP.
How much does CRYSTAL HAMLIN, ACAGNP prescribe under Medicare Part D?
In 2023, CRYSTAL HAMLIN, ACAGNP wrote 1,593 Medicare Part D claims totaling $22K in drug costs for 354 beneficiaries.
What is CRYSTAL HAMLIN, ACAGNP's Medicare quality score?
CRYSTAL HAMLIN, ACAGNP has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CRYSTAL HAMLIN, ACAGNP located?
CRYSTAL HAMLIN, ACAGNP is located at 5301 E GRANT RD, TUCSON, AZ, 85712. Phone: (520) 784-6200.
What is CRYSTAL HAMLIN, ACAGNP's NPI number?
CRYSTAL HAMLIN, ACAGNP's National Provider Identifier (NPI) is 1447751540, issued on 02/23/2018.
Does CRYSTAL HAMLIN, ACAGNP prescribe more brand-name or generic drugs?
CRYSTAL HAMLIN, ACAGNP's prescribing is 1% brand-name and 99% generic drugs by claim count, with $4K in brand drug costs.
Does CRYSTAL HAMLIN, ACAGNP prescribe opioids?
Yes, CRYSTAL HAMLIN, ACAGNP had 439 opioid claims in 2023 with an opioid prescribing rate of 27.6%.
How many Orthopedic Registered Nurse providers are there in the US?
There are 283 Orthopedic Registered Nurse providers across 48 states in the US. The average Orthopedic Registered Nurse provider writes 568 Medicare Part D claims per year.
What drugs does CRYSTAL HAMLIN, ACAGNP prescribe most often?
Based on 2023 Medicare Part D data, CRYSTAL HAMLIN, ACAGNP's most frequently prescribed drugs include Meloxicam, Gabapentin, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CRYSTAL HAMLIN, ACAGNP accept Medicare?
CRYSTAL HAMLIN, ACAGNP appears in CMS Medicare data with 1,593 Part D claims and 354 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CRYSTAL HAMLIN, ACAGNP's credentials?
CRYSTAL HAMLIN, ACAGNP's NPI is 1447751540 with credentials ACAGNP. 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