2026 NPPES data Hospitalist Physician NPI 1063659209 M.D.
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SONGMIN CAI, M.D.

Hospitalist Physician in NASHVILLE, Tennessee. 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
1K
Medicare Part D claims · 92 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SONGMIN CAI, M.D. is a Hospitalist Physician ([object Object]) practicing in NASHVILLE, Tennessee with a Medicare Part D prescribing footprint of 1K claims across 92 beneficiaries — 17% brand-name prescribing .

What stands out: SONGMIN CAI, M.D. filed 1,083 Medicare Part D claims in 2023 across NASHVILLE, Tennessee. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SONGMIN CAI, 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).

SONGMIN CAI, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 01/09/2009

NPI 1063659209

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

1,083 22% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Tennessee

How Hospitalist Physician compares to other specialties among Tennessee providers

Tennessee providers

Hospitalist Physician share within Tennessee

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

Specialty board-certification context

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

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

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

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

SONGMIN CAI, M.D. is a Hospitalist Physician provider practicing in NASHVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1063659209. 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.

SONGMIN CAI, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 10 KNOLLS PL, NASHVILLE, TN, 37211, with a listed phone of (615) 457-1265. NPI 1063659209 was issued on 01/09/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CAI 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 1,083 prescription claims written by this provider, covering 92 Medicare beneficiaries and totaling roughly $143K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 1.1%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

10 KNOLLS PL
NASHVILLE, TN 37211

Provider Details

NPI 1063659209
Specialty Hospitalist Physician
Credentials M.D.
Gender Male
NPI Issued 01/09/2009

Brand vs generic prescribing mix · Typical

SONGMIN CAI, M.D. — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 1,083 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.

1,083
Total Claims
$143K
Total Drug Cost
92
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,376
Total Day Supply
68,202
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$123K
Generic Drug Cost
$20K
Opioid Claims
12 (1.1% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.04
Gender Split
50% female / 50% 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
Atorvastatin Calcium
93
Amlodipine Besylate
71
Metoprolol Tartrate
58
Losartan Potassium
52
Tamsulosin Hcl
41
Levothyroxine Sodium
37
Pantoprazole Sodium
37
Montelukast Sodium
29
Albuterol Sulfate Hfa
Albuterol Sulfate
25
Valsartan
25

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

Hospitalist Physician Overview

How SONGMIN CAI, M.D. fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

SONGMIN CAI, M.D.'s 1,083 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in Tennessee

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SONGMIN CAI, M.D.'s specialty?
SONGMIN CAI, M.D. specializes in Hospitalist Physician and practices in NASHVILLE, Tennessee. Credentials: M.D..
How much does SONGMIN CAI, M.D. prescribe under Medicare Part D?
In 2023, SONGMIN CAI, M.D. wrote 1,083 Medicare Part D claims totaling $143K in drug costs for 92 beneficiaries.
Where is SONGMIN CAI, M.D. located?
SONGMIN CAI, M.D. is located at 10 KNOLLS PL, NASHVILLE, TN, 37211. Phone: (615) 457-1265.
What is SONGMIN CAI, M.D.'s NPI number?
SONGMIN CAI, M.D.'s National Provider Identifier (NPI) is 1063659209, issued on 01/09/2009.
Does SONGMIN CAI, M.D. prescribe more brand-name or generic drugs?
SONGMIN CAI, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $123K in brand drug costs.
Does SONGMIN CAI, M.D. prescribe opioids?
Yes, SONGMIN CAI, M.D. had 12 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does SONGMIN CAI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SONGMIN CAI, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SONGMIN CAI, M.D. accept Medicare?
SONGMIN CAI, M.D. appears in CMS Medicare data with 1,083 Part D claims and 92 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SONGMIN CAI, M.D.'s credentials?
SONGMIN CAI, M.D.'s NPI is 1063659209 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