2026 NPPES data Internal Medicine Physician NPI 1639431877 MD
Verify on CMS →

RACHELLE MILES, MD

Internal Medicine Physician in FORT DEFIANCE, 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 · 116 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

RACHELLE MILES, MD filed 1,712 Medicare Part D claims in 2023 as a Internal Medicine Physician in FORT DEFIANCE, Arizona, prescribing 67% generic.

2K
Part D claims, 2023
67%
generic prescribing
Likely
board-certified (heuristic)

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.

RACHELLE MILES, MD's Medicare Part D volume vs every U.S. prescriber

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

1,712 Top 17% higher than 83% 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%). This entry sits in this band. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 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

Board certification likely (heuristic — not verified)

RACHELLE MILES, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 RACHELLE MILES, MD?

Quality data not reported

NPI registry status

Active

Issued 06/13/2012

NPI 1639431877

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,712 37% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Arizona

How Internal Medicine Physician compares to other specialties among Arizona providers

Arizona providers

Internal Medicine Physician share within Arizona

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — 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).

RACHELLE MILES, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at CORNER OF ROUTE N12 AND N7, FORT DEFIANCE, AZ, 86504, with a listed phone of (928) 729-8000. NPI 1639431877 was issued on 06/13/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MILES 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 1,712 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $239K in drug spend, split 33% brand-name and 67% generic by claim count. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

CORNER OF ROUTE N12 AND N7
FORT DEFIANCE, AZ 86504

Provider Details

NPI 1639431877
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 06/13/2012

Hospital and facility affiliations

Facilities where RACHELLE MILES, MD 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.

DHEW IND HLTH SV HLTH SVS AND MNTL HLTH ADM
PHOENIX, 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 · Above average

RACHELLE MILES, MD — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 1,712 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.

1,712
Total Claims
$239K
Total Drug Cost
116
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,867
Total Day Supply
84,073
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$222K
Generic Drug Cost
$13K
Antibiotic Claims
19

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
2.02
Gender Split
67% female / 33% male
Age Distribution
<65: 30, 65-74: 51, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What RACHELLE MILES, MD 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
Lisinopril
88
Levothyroxine Sodium
81
Famotidine
78
Albuterol Sulfate Hfa
Albuterol Sulfate
66
Metformin Hcl
57
Furosemide
46
Gabapentin
44
Ozempic
Semaglutide
44
Atorvastatin Calcium
43
Losartan Potassium
41

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

Internal Medicine Physician Overview

How RACHELLE MILES, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

RACHELLE MILES, MD's 1,712 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Arizona

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RACHELLE MILES, MD's specialty?
RACHELLE MILES, MD specializes in Internal Medicine Physician and practices in FORT DEFIANCE, Arizona. Credentials: MD.
How much does RACHELLE MILES, MD prescribe under Medicare Part D?
In 2023, RACHELLE MILES, MD wrote 1,712 Medicare Part D claims totaling $239K in drug costs for 116 beneficiaries.
Where is RACHELLE MILES, MD located?
RACHELLE MILES, MD is located at CORNER OF ROUTE N12 AND N7, FORT DEFIANCE, AZ, 86504. Phone: (928) 729-8000.
What is RACHELLE MILES, MD's NPI number?
RACHELLE MILES, MD's National Provider Identifier (NPI) is 1639431877, issued on 06/13/2012.
Does RACHELLE MILES, MD prescribe more brand-name or generic drugs?
RACHELLE MILES, MD's prescribing is 33% brand-name and 67% generic drugs by claim count, with $222K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does RACHELLE MILES, MD prescribe most often?
Based on 2023 Medicare Part D data, RACHELLE MILES, MD's most frequently prescribed drugs include Lisinopril, Levothyroxine Sodium, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RACHELLE MILES, MD accept Medicare?
RACHELLE MILES, MD appears in CMS Medicare data with 1,712 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RACHELLE MILES, MD's credentials?
RACHELLE MILES, MD's NPI is 1639431877 with credentials MD. 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