2026 NPPES data Orthopaedic Surgery Physician NPI 1174501381 MD
Verify on CMS →

JOHN NAIMAN, MD

Orthopaedic Surgery Physician in BALTIMORE, Maryland. 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
147
Medicare Part D claims · 57 beneficiaries · Orthopaedic Surgery Physician avg: 324
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOHN NAIMAN, MD filed 147 Medicare Part D claims in 2023 as a Orthopaedic Surgery Physician in BALTIMORE, Maryland, prescribing 89% generic.

147
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.

JOHN NAIMAN, MD's Medicare Part D volume vs every U.S. prescriber

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

147 35th percentile higher than 35% 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

Board-eligible specialty (heuristic — not verified)

JOHN NAIMAN, MD 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).

What does the federal data show about JOHN NAIMAN, MD?

Quality data not reported

NPI registry status

Active

Issued 01/06/2006

NPI 1174501381

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

147 55% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in Maryland

How Orthopaedic Surgery Physician compares to other specialties among Maryland providers

Maryland providers

Orthopaedic Surgery Physician share within Maryland

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Orthopaedic Surgery Physician (ABMS / AOA reference)

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

Est. board-certified rate (Orthopaedic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Orthopaedic Surgery 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).

JOHN NAIMAN, MD is a Orthopaedic Surgery Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1174501381. 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 NAIMAN, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 7850 EASTERN AVE, BALTIMORE, MD, 21224, with a listed phone of (410) 282-4848. NPI 1174501381 was issued on 01/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NAIMAN 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 147 prescription claims written by this provider, covering 57 Medicare beneficiaries and totaling roughly $6K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 24.5%. 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.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

7850 EASTERN AVE
BALTIMORE, MD 21224

Provider Details

NPI 1174501381
Specialty Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 01/06/2006

Brand vs generic prescribing mix · Typical

JOHN NAIMAN, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 147 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.

147
Total Claims
$6K
Total Drug Cost
57
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
169
Total Day Supply
3,054
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$4K
Generic Drug Cost
$1K
Opioid Claims
36 (24.5% rate)
Antibiotic Claims
18

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
0.71
Gender Split
51% female / 49% 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
Diclofenac Sodium
40
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
25
Methylprednisolone
14
Amoxicillin
12
Naproxen
11

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

Orthopaedic Surgery Physician Overview

How JOHN NAIMAN, MD fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

JOHN NAIMAN, MD's 147 claims are below the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in Maryland

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

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN NAIMAN, MD's specialty?
JOHN NAIMAN, MD specializes in Orthopaedic Surgery Physician and practices in BALTIMORE, Maryland. Credentials: MD.
How much does JOHN NAIMAN, MD prescribe under Medicare Part D?
In 2023, JOHN NAIMAN, MD wrote 147 Medicare Part D claims totaling $6K in drug costs for 57 beneficiaries.
Where is JOHN NAIMAN, MD located?
JOHN NAIMAN, MD is located at 7850 EASTERN AVE, BALTIMORE, MD, 21224. Phone: (410) 282-4848.
What is JOHN NAIMAN, MD's NPI number?
JOHN NAIMAN, MD's National Provider Identifier (NPI) is 1174501381, issued on 01/06/2006.
Does JOHN NAIMAN, MD prescribe more brand-name or generic drugs?
JOHN NAIMAN, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $4K in brand drug costs.
Does JOHN NAIMAN, MD prescribe opioids?
Yes, JOHN NAIMAN, MD had 36 opioid claims in 2023 with an opioid prescribing rate of 24.5%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does JOHN NAIMAN, MD prescribe most often?
Based on 2023 Medicare Part D data, JOHN NAIMAN, MD's most frequently prescribed drugs include Diclofenac Sodium, Hydrocodone-Acetaminophen, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN NAIMAN, MD accept Medicare?
JOHN NAIMAN, MD appears in CMS Medicare data with 147 Part D claims and 57 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN NAIMAN, MD's credentials?
JOHN NAIMAN, MD's NPI is 1174501381 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