Provider profile

Carolina DiaoMD

Psychiatry & Neurology, Psychiatry

NPI 1275602344
3131 Princeton Pike Ste 109, Lawrenceville, NJ 08648609-633-1500

Check your plan

Medicare Advantage plans for Mercer County, NJ.

Checked Oct 14, 2026

Use the name or plan ID on your member card, or choose your insurance company.

Directory results See what each insurance company reports

The 47 Medicare Advantage plans we show for Mercer County, NJ in 2027

  • 6 list Carolina
  • 41 not listed

Aetna Medicare

4 plans list Carolina; not listed on 7 other plans.

4plans
  • Aetna Medicare Prime (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 180 Ewingville Rd, Ste 109, Ewing, NJ, 08638

    This result applies to these offices. Other locations are not confirmed.

    HMO-POSDrug coverage4 starsH3152-080-000Medicare.gov
    $0a month
  • Aetna Medicare Prime (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 180 Ewingville Rd, Ste 109, Ewing, NJ, 08638

    This result applies to these offices. Other locations are not confirmed.

    PPODrug coverage4 starsH5521-392-000Medicare.gov
    $0a month
  • Aetna Medicare Prime Giveback (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 180 Ewingville Rd, Ste 109, Ewing, NJ, 08638

    This result applies to these offices. Other locations are not confirmed.

    PPODrug coverage4 starsH5521-277-000Medicare.gov
    $0a month
  • Aetna Medicare Prime Extra (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 180 Ewingville Rd, Ste 109, Ewing, NJ, 08638

    This result applies to these offices. Other locations are not confirmed.

    PPODrug coverage4 starsH5521-275-000Medicare.gov
    $84a month

AmeriHealth

1 plan lists Carolina.

1plan
  • AmeriHealth Medicare Classic Rx (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 3131 Princeton Pike, Ste 109, Lawrenceville, NJ, 08648

    This result applies to these offices. Other locations are not confirmed.

    HMODrug coverageH6407-002-000Medicare.gov
    $0a month

Horizon Blue Cross Blue Shield of New Jersey

1 plan lists Carolina.

1plan
  • Horizon NJ TotalCare (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 3131 Princeton Pike, Ste 5-109, Lawrenceville, NJ, 08648
    • 180 Ewingville Rd, Ewing, NJ, 08638

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage4 starsH8298-001-000Medicare.gov
    $36.30a month

Clover Health

Not listed on its 4 plans here. That isn't proof they're out of network.

Devoted

Not listed on its 6 plans here. That isn't proof they're out of network.

Humana

Not listed on its 6 plans here. That isn't proof they're out of network.

Jefferson Health Plans

Not listed on its 2 plans here. That isn't proof they're out of network.

UnitedHealthcare

Not listed on its 11 plans here. That isn't proof they're out of network.

Wellcare

Not listed on its 3 plans here. That isn't proof they're out of network.

Wellpoint

Not listed on its 2 plans here. That isn't proof they're out of network.

Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.

Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether Carolina takes it. Free.

Original Medicare status

Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.

Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.

No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.

CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 25, 2026

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Practice location

3131 Princeton Pike Ste 109
Lawrenceville, NJ 08648

NPI Registry
NPI issued
2006
Registry record updated
Jan 26, 2017

Medicare's clinician details aren't available on this page yet.

Common questions

Which 2027 Medicare Advantage plans list Carolina Diao?

In Mercer County, NJ, 6 Medicare Advantage plans for 2027 list Carolina in provider data from Medicare.gov or the carrier, including Aetna Medicare Prime (HMO-POS), Aetna Medicare Prime (PPO) and Aetna Medicare Prime Giveback (PPO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Networks can change during the year, so confirm with the office or the plan before you enroll.

Does Carolina Diao take Aetna Medicare Medicare Advantage plans?

Medicare.gov provider data lists Carolina on 4 Medicare Advantage plans for 2027 in Mercer County, NJ, including Aetna Medicare Prime (HMO-POS) and Aetna Medicare Prime (PPO). 7 other plans did not return a listing in the search area. CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Aetna Medicare before you enroll.

Does Carolina Diao take AmeriHealth Medicare Advantage plans?

Medicare.gov provider data lists Carolina on one Medicare Advantage plan for 2027 in Mercer County, NJ: AmeriHealth Medicare Classic Rx (HMO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or AmeriHealth before you enroll.

Does Carolina Diao take Horizon Blue Cross Blue Shield of New Jersey Medicare Advantage plans?

Medicare.gov provider data lists Carolina on one Medicare Advantage plan for 2027 in Mercer County, NJ: Horizon NJ TotalCare (HMO D-SNP). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Horizon Blue Cross Blue Shield of New Jersey before you enroll.

Where does Carolina Diao practice?

3131 Princeton Pike Ste 109, Lawrenceville, NJ 08648.

How do I confirm Carolina is in my plan's network?

Call the member services number on your plan card and give them the NPI 1275602344, or ask a Silverpath advisor to check for you. It's free.

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A Silverpath advisor can confirm Carolina's networks with the carrier and help you compare plans that include them.

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For providers

Is this your practice?

What patients see here today:

  • Provider searches did not return a listing for Carolina Diao on 34 plans from Clover Health, Devoted, Humana, Jefferson Health Plans, UnitedHealthcare, Wellcare and Wellpoint in Mercer County, NJ. Other offices are not confirmed; this isn't proof the practice is out of network.

Tell us which plans you take, or want to take, and we'll keep this page accurate and talk with you about reaching more Medicare patients and carriers.

Sources. Name, specialty and locations: the CMS NPI Registry (record updated 2017-01-26). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 14, 2026. CMS matches apply to the covered offices shown with each plan. Plans: CMS 2027 Medicare Advantage landscape.

Networks change during the year, and a directory can be out of date. Confirm with the provider's office and the plan before you enroll or schedule care.

Silverpath is a licensed insurance agency. This page isn't affiliated with or endorsed by Carolina Diao or their practice. Not connected with or endorsed by the U.S. government or the federal Medicare program.

We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.

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