JOHN HALLFORD, M.D.
Occupational Medicine Physician in TULSA, Oklahoma. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: JOHN HALLFORD, M.D. specializes in Occupational Medicine Physician and practices in TULSA, Oklahoma, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.
JOHN HALLFORD, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
JOHN HALLFORD, M.D. at a glance
Quality data not reportedPrimary specialty
Specialty distribution in Oklahoma
How Occupational Medicine Physician compares to other specialties among Oklahoma providers
Occupational Medicine Physician share within Oklahoma
Occupational Medicine Physician is one of the more visible NUCC categories in Oklahoma
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Occupational Medicine Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Occupational Medicine Physician ABMS/AOA estimate
Est. board-certified rate (Occupational Medicine Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Occupational Medicine Physician US NPIs
Specialty board-certified rate — Occupational Medicine Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
JOHN HALLFORD, M.D. is a Occupational Medicine Physician provider practicing in TULSA, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1366560104. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
JOHN HALLFORD, M.D. appears in the CMS NPPES registry as a Occupational Medicine Physician provider holding M.D. credentials at 5682 W SKELLY DR, TULSA, OK, 74107, with a listed phone of (615) 778-4066. NPI 1366560104 was issued on 03/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HALLFORD 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Occupational Medicine Physician providers operate outside Part D entirely.
Occupational Medicine Physician is a narrow specialty nationwide, with 2,230 enrolled providers across 52 states and an average of 605 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
Provider Details
| NPI | 1366560104 |
|---|---|
| Specialty | Occupational Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/27/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm JOHN HALLFORD, M.D.'s current license status, disciplinary history, and board certifications with the Oklahoma State Board of Medical Licensure in Oklahoma before relying on this page for a clinical or care decision.
How we sourced this profile
Occupational Medicine Physician Overview
How JOHN HALLFORD, M.D. fits within the Occupational Medicine Physician landscape nationally.
Nearby Occupational Medicine Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as HALLFORD.
Compare Occupational Medicine Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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.
- 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