2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1992092357 DO
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JUNG HAN, DO

Geriatric Medicine (Family Medicine) Physician in EL MONTE, California. 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 · 82 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JUNG HAN, DO filed 1,873 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in EL MONTE, California, prescribing 67% generic.

2K
Part D claims, 2023
67%
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.

JUNG HAN, DO's Medicare Part D volume vs every U.S. prescriber

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

1,873 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 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)

JUNG HAN, DO 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 JUNG HAN, DO?

Quality data not reported

NPI registry status

Active

Issued 07/06/2011

NPI 1992092357

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

1,873 61% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in California

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among California providers

California providers

Geriatric Medicine (Family Medicine) Physician share within California

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within California

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

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

0%100%78%
Est. board-certified rate (Geriatric Medicine (Family 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).

JUNG HAN, DO appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding DO credentials at 10418 VALLEY BLVD STE A, EL MONTE, CA, 91731, with a listed phone of (626) 258-1600. NPI 1992092357 was issued on 07/06/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAN 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 1,873 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $83K in drug spend, split 33% brand-name and 67% generic by claim count, with an opioid prescribing rate of 2.3%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

10418 VALLEY BLVD STE A
EL MONTE, CA 91731

Provider Details

NPI 1992092357
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials DO
Gender Female
NPI Issued 07/06/2011

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to JUNG HAN, DO. To verify JUNG HAN, DO's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

JUNG HAN, DO — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 1,873 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.

1,873
Total Claims
$83K
Total Drug Cost
82
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,478
Total Day Supply
99,129
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$55K
Generic Drug Cost
$26K
Opioid Claims
44 (2.3% rate)
Antibiotic Claims
52

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.87
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

What JUNG HAN, DO 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
74
Pantoprazole Sodium
61
Trulicity
Dulaglutide
60
Levothyroxine Sodium
49
Gabapentin
41
Metformin Hcl
41
Losartan Potassium
39
Levemir
Insulin Detemir
38
Lisinopril
36
Latanoprost
33

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

Geriatric Medicine (Family Medicine) Physician Overview

How JUNG HAN, DO fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

JUNG HAN, DO's 1,873 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in California

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JUNG HAN, DO's specialty?
JUNG HAN, DO specializes in Geriatric Medicine (Family Medicine) Physician and practices in EL MONTE, California. Credentials: DO.
How much does JUNG HAN, DO prescribe under Medicare Part D?
In 2023, JUNG HAN, DO wrote 1,873 Medicare Part D claims totaling $83K in drug costs for 82 beneficiaries.
Where is JUNG HAN, DO located?
JUNG HAN, DO is located at 10418 VALLEY BLVD STE A, EL MONTE, CA, 91731. Phone: (626) 258-1600.
What is JUNG HAN, DO's NPI number?
JUNG HAN, DO's National Provider Identifier (NPI) is 1992092357, issued on 07/06/2011.
Does JUNG HAN, DO prescribe more brand-name or generic drugs?
JUNG HAN, DO's prescribing is 33% brand-name and 67% generic drugs by claim count, with $55K in brand drug costs.
Does JUNG HAN, DO prescribe opioids?
Yes, JUNG HAN, DO had 44 opioid claims in 2023 with an opioid prescribing rate of 2.3%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does JUNG HAN, DO prescribe most often?
Based on 2023 Medicare Part D data, JUNG HAN, DO's most frequently prescribed drugs include Atorvastatin Calcium, Pantoprazole Sodium, Trulicity. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JUNG HAN, DO accept Medicare?
JUNG HAN, DO appears in CMS Medicare data with 1,873 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JUNG HAN, DO's credentials?
JUNG HAN, DO's NPI is 1992092357 with credentials DO. 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