2026 NPPES data Chiropractor NPI 1811135759 FNP
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DAVID RAY, FNP

Chiropractor in GRANTS PASS, Oregon. 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
6K
Medicare Part D claims · 367 beneficiaries · Chiropractor avg: 824
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DAVID RAY, FNP filed 6,235 Medicare Part D claims in 2023 as a Chiropractor in GRANTS PASS, Oregon, prescribing 89% generic.

6K
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.

DAVID RAY, FNP's Medicare Part D volume vs every U.S. prescriber

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

6,235 Top 5% higher than 95% 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 DAVID RAY, FNP?

Quality data not reported

NPI registry status

Active

Issued 01/30/2009

NPI 1811135759

Primary specialty

Chiropractor

High-volume

95,153 US NPIs in this specialty

Medicare Part D claims

6,235 657% vs specialty avg

2023 prescription claims

Specialty avg: 824

Specialty distribution in Oregon

How Chiropractor compares to other specialties among Oregon providers

Oregon providers

Chiropractor share within Oregon

1. Chiropractor42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Chiropractor share within Oregon

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Chiropractor) — 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).

DAVID RAY, FNP appears in the CMS NPPES registry as a Chiropractor provider holding FNP credentials at 825 NE 7TH ST, GRANTS PASS, OR, 97526, with a listed phone of (541) 955-7246. NPI 1811135759 was issued on 01/30/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAY 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 6,235 prescription claims written by this provider, covering 367 Medicare beneficiaries and totaling roughly $445K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 6.3%. 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.

Chiropractor is a high-volume specialty nationwide, with 95,153 enrolled providers across 56 states and an average of 824 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

825 NE 7TH ST
GRANTS PASS, OR 97526

Provider Details

NPI 1811135759
Specialty Chiropractor
Credentials FNP
Gender Male
NPI Issued 01/30/2009

Hospital and facility affiliations

Facilities where DAVID RAY, FNP 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.

DAVERA CORPORATION
GRANTS PASS, OR

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

DAVID RAY, FNP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 6,235 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.

6,235
Total Claims
$445K
Total Drug Cost
367
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
14,094
Total Day Supply
413,390
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$336K
Generic Drug Cost
$106K
Opioid Claims
390 (6.3% rate)
Antibiotic Claims
87

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
1.02
Gender Split
54% female / 46% male
Age Distribution
<65: 27, 65-74: 178, 75-84: 119, 85+: 43

Top Prescribed Drugs (Medicare Part D)

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

What DAVID RAY, FNP 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
Atorvastatin Calcium
352
Lisinopril
337
Levothyroxine Sodium
313
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
250
Omeprazole
195
Amlodipine Besylate
191
Losartan Potassium
189
Metformin Hcl
170
Metoprolol Succinate
141
Tamsulosin Hcl
124

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

Chiropractor Overview

How DAVID RAY, FNP fits within the Chiropractor landscape nationally.

95,153
Chiropractor Providers in US
56
States with Chiropractor
824
Avg Claims per Provider

DAVID RAY, FNP's 6,235 claims are above the specialty average of 824.

Nearby Chiropractor Providers in Oregon

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

Compare Chiropractor nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID RAY, FNP's specialty?
DAVID RAY, FNP specializes in Chiropractor and practices in GRANTS PASS, Oregon. Credentials: FNP.
How much does DAVID RAY, FNP prescribe under Medicare Part D?
In 2023, DAVID RAY, FNP wrote 6,235 Medicare Part D claims totaling $445K in drug costs for 367 beneficiaries.
Where is DAVID RAY, FNP located?
DAVID RAY, FNP is located at 825 NE 7TH ST, GRANTS PASS, OR, 97526. Phone: (541) 955-7246.
What is DAVID RAY, FNP's NPI number?
DAVID RAY, FNP's National Provider Identifier (NPI) is 1811135759, issued on 01/30/2009.
Does DAVID RAY, FNP prescribe more brand-name or generic drugs?
DAVID RAY, FNP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $336K in brand drug costs.
Does DAVID RAY, FNP prescribe opioids?
Yes, DAVID RAY, FNP had 390 opioid claims in 2023 with an opioid prescribing rate of 6.3%.
How many Chiropractor providers are there in the US?
There are 95,153 Chiropractor providers across 56 states in the US. The average Chiropractor provider writes 824 Medicare Part D claims per year.
What drugs does DAVID RAY, FNP prescribe most often?
Based on 2023 Medicare Part D data, DAVID RAY, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID RAY, FNP accept Medicare?
DAVID RAY, FNP appears in CMS Medicare data with 6,235 Part D claims and 367 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID RAY, FNP's credentials?
DAVID RAY, FNP's NPI is 1811135759 with credentials FNP. 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