NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1063659209 M.D.
Verify on CMS → Songmin Cai, M.D.
Hospitalist Physician in Nashville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,825 in Hospitalist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 92 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
81%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Songmin Cai, M.D. filed 1,083 Medicare Part D claims in 2023 as a Hospitalist Physician in Nashville, Tennessee, prescribing 81% generic.
- 1K
- Part D claims, 2023
- 81%
- 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.
Songmin Cai, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,083 Top 24% higher than 76% of 1,370,886 prescribers
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)
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).
What does the federal data show about Songmin Cai, M.D.?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
1,083 22% vs specialty avg
Specialty distribution in Tennessee
How Hospitalist Physician compares to other specialties among Tennessee providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hospitalist Physician. Verify directly:
How MIPS and board certification work
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. 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.
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 81% generic by claim count, with an opioid prescribing rate of 1.1%.
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
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%
Hospitalist Physician average
17% brand-name claims vs 81% 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 / 81% 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.
What Songmin Cai, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
93 claims
- Amlodipine Besylate
Amlodipine Besylate
71 claims
- Metoprolol Tartrate
Metoprolol Tartrate
58 claims
- Losartan Potassium
Losartan Potassium
52 claims
- Tamsulosin Hcl
Tamsulosin Hcl
41 claims
- Levothyroxine Sodium 37
Levothyroxine Sodium
37 claims
- Pantoprazole Sodium 37
Pantoprazole Sodium
37 claims
- Montelukast Sodium 29
Montelukast Sodium
29 claims
| 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.
Dr. Mohammad Abutineh
M.D.
Memphis, TN
Dr. Frank Adamini
MD
Hermitage, TN
Dr. Stephanie Adams
D.O.
Bristol, TN
Dr. Stephen Adams
MD
Chattanooga, TN
Dr. Oluwaseyi Adejorin
M.D
Cookeville, TN
Compare Hospitalist Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Tennessee
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 81% 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.