2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1528520319
Verify on CMS →

Ayala Slater

Physical Medicine & Rehabilitation Physician in Boulder, Colorado.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,618 in Physical Medicine & Rehabilitation Physician, 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
267
Medicare Part D claims · 122 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 793
MIPS score
79.6/100
▼ 4 pts below national avg 83.5 · Above neutral
Industry payments
$107.62
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Ayala Slater reported a CMS MIPS final score of 79.6/100 - below the 83.5 national average - and filed 267 Medicare Part D claims in 2024.

79.6/100
MIPS score · -4 vs avg
267
Part D claims, 2024
Likely
board-certified (heuristic)
≥26th
pct among measured MIPS (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 Ayala Slater

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1528520319), first enumerated 04/02/2019.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 267 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 79.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $107.62 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • 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 1528520319 · Physical Medicine & Rehabilitation Physician

NPI-10 · ENUM-RECENT · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1528520319
  • ENUM-RECENT 2019
  • TAX-MID 16K Physical Medicine
  • MIPS-BELOW 79.6/100
  • RX-LIGHT 267
  • BOOK-THIN 365 in Colorado
  • PHOTO-FINISH Scott Horn, D.O. · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Ayala Slater's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

80 ≥ 26th percentile 26% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Ayala Slater sits

This provider among physical medicine & rehabilitation physician peers

Across the 2,483 physical medicine & rehabilitation physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ayala Slater writes more Part D claims than 43% of them and scores higher on MIPS quality than 38% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 27Ayala Slater, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 38
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one physical medicine & rehabilitation physician peer from a representative sample of 60; the gold marker is Ayala Slater. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Ayala Slater practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Ayala Slater?

Near national average

NPI registry status

Active

Issued 04/02/2019

NPI 1528520319

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,618 US NPIs in this specialty

Medicare Part D claims

267 66% vs specialty avg

2024 prescription claims

Specialty avg: 793

MIPS final score

79.6/100 3.9 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Colorado

How Physical Medicine & Rehabilitation Physician compares to other specialties among Colorado providers

Colorado providers
Behavior Technician8.2%Mental Health Counselor6.1%Clinical Social Worker4.3%Physical Therapist4.2%Professional Counselor3.7%Registered Nurse3.6%Physical Medicine & Rehabili…0.2%
Largest specialties in Colorado (% of in-state providers)

Medicare quality performance, MIPS

Ayala Slater's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average

Near national average
MIPS Final Score
79.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%79.6%
MIPS final score (Physical Medicine & Rehabilitation Physician) - 79.6/100 vs national avg 83.5
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

4740 PEARL PKWY STE 200
Boulder, CO 80301

Provider Details

NPI 1528520319
Specialty Physical Medicine & Rehabilitation Physician
Gender Female
NPI Issued 04/02/2019

CMS Quality Score (MIPS)

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

79.5721
Final Score
Measured-score avg: 83.5
72.6518
Quality
60.0886
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Ayala Slater 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.

Bouldercentre For Orthopedics PC
Boulder, CO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Ayala Slater. Source: openpaymentsdata.cms.gov.

Total received

$108

Largest payer

SPR Therapeutics, Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

267
Total Claims
$2K
Total Drug Cost
122
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
285.5
Total Day Supply
7,429
Brand Drug Cost
$0
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.07
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Ayala Slater prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Gabapentin
94
Celecoxib
52
Pregabalin
29
Meloxicam
19
Prednisone
19
Cyclobenzaprine Hcl
18

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

Physical Medicine & Rehabilitation Physician Overview

How Ayala Slater fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,618
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
793
Avg Claims per Provider

Ayala Slater's 267 claims are below the specialty average of 793.

Nationwide Physical Medicine & Rehabilitation Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Slater, both outside Colorado so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (79.6 here).

Same NPPES enumeration year (2019)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Physical Medicine & Rehabilitation Physician Providers in Colorado

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

One of 365 Physical Medicine & Rehabilitation Physician providers enrolled in Colorado, 5 are shown here.

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Ayala Slater's specialty?
Ayala Slater specializes in Physical Medicine & Rehabilitation Physician and practices in Boulder, Colorado.
How much does Ayala Slater prescribe under Medicare Part D?
In 2024, Ayala Slater wrote 267 Medicare Part D claims totaling $2K in drug costs for 122 beneficiaries.
What is Ayala Slater's Medicare quality score?
Ayala Slater has a CMS MIPS Final Score of 79.6/100 (Quality: 72.7, Cost: 60.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ayala Slater located?
Ayala Slater is located at 4740 PEARL PKWY STE 200, Boulder, CO, 80301. Phone: (303) 449-2730.
What is Ayala Slater's NPI number?
Ayala Slater's National Provider Identifier (NPI) is 1528520319, issued on 04/02/2019.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,618 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 793 Medicare Part D claims per year.
What drugs does Ayala Slater prescribe most often?
Based on 2024 Medicare Part D data, Ayala Slater's most frequently prescribed drugs include Gabapentin, Celecoxib, Pregabalin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ayala Slater accept Medicare?
Ayala Slater appears in CMS Medicare data with 267 Part D claims and 122 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ayala Slater's credentials?
Ayala Slater's NPI is 1528520319. 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.
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 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.