2026 NPPES data Specialist NPI 1598795973 M.D.
Verify on CMS →

MICHAEL COLLINS, M.D.

Specialist in BARTLESVILLE, Oklahoma. 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
52
Medicare Part D claims · 11 beneficiaries · Specialist avg: 1K
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MICHAEL COLLINS, M.D. filed 52 Medicare Part D claims in 2023 as a Specialist in BARTLESVILLE, Oklahoma, prescribing 71% generic.

52
Part D claims, 2023
71%
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.

MICHAEL COLLINS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

52 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 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

What does the federal data show about MICHAEL COLLINS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/03/2006

NPI 1598795973

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

52 96% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Oklahoma

How Specialist compares to other specialties among Oklahoma providers

Oklahoma providers

Specialist share within Oklahoma

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Oklahoma

Specialty board-certification context

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

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

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

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

MICHAEL COLLINS, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 3400 FRANK PHILLIPS BLVD, BARTLESVILLE, OK, 74006, with a listed phone of (918) 331-2522. NPI 1598795973 was issued on 07/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COLLINS 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 52 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $5K in drug spend, split 29% brand-name and 71% 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

3400 FRANK PHILLIPS BLVD
BARTLESVILLE, OK 74006

Provider Details

NPI 1598795973
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 07/03/2006

Brand vs generic prescribing mix · Above average

MICHAEL COLLINS, M.D. — brand share 29.0%
Specialty average (est.)

29% brand-name claims vs 71% generic, on 52 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.

52
Total Claims
$5K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
95
Total Day Supply
2,804
Brand vs Generic
29% brand / 71% generic
Brand Drug Cost
$2K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
67.4 years
Avg HCC Risk Score
1.17
Gender Split
100% female / 0% 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
Tolterodine Tartrate Er
Tolterodine Tartrate
20

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

Specialist Overview

How MICHAEL COLLINS, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

MICHAEL COLLINS, M.D.'s 52 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Oklahoma

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

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

Frequently Asked Questions

What is MICHAEL COLLINS, M.D.'s specialty?
MICHAEL COLLINS, M.D. specializes in Specialist and practices in BARTLESVILLE, Oklahoma. Credentials: M.D..
How much does MICHAEL COLLINS, M.D. prescribe under Medicare Part D?
In 2023, MICHAEL COLLINS, M.D. wrote 52 Medicare Part D claims totaling $5K in drug costs for 11 beneficiaries.
Where is MICHAEL COLLINS, M.D. located?
MICHAEL COLLINS, M.D. is located at 3400 FRANK PHILLIPS BLVD, BARTLESVILLE, OK, 74006. Phone: (918) 331-2522.
What is MICHAEL COLLINS, M.D.'s NPI number?
MICHAEL COLLINS, M.D.'s National Provider Identifier (NPI) is 1598795973, issued on 07/03/2006.
Does MICHAEL COLLINS, M.D. prescribe more brand-name or generic drugs?
MICHAEL COLLINS, M.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $2K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does MICHAEL COLLINS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL COLLINS, M.D.'s most frequently prescribed drugs include Tolterodine Tartrate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL COLLINS, M.D. accept Medicare?
MICHAEL COLLINS, M.D. appears in CMS Medicare data with 52 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL COLLINS, M.D.'s credentials?
MICHAEL COLLINS, M.D.'s NPI is 1598795973 with credentials M.D.. 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