JAMES H MERSEY M.D.
NPI 1669477683
Internal Medicine - Endocrinology, Diabetes & Metabolism in The Villages, FL

Q: What is James Mersey's NPI number?

The NPI number for James Mersey is 1669477683. It was assigned to this individual provider in the NPPES registry on June 16, 2005.

Q: What is James Mersey's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for James Mersey was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 16, 2005PECOS EnrolledAccepts Medicare Assignment

93.88/100

CMS Quality Rating

2955 BROWNWOOD BLVD, THE VILLAGES, FL 32163(352) 674-8700(352) 674-8714 Get Directions Write a Review

NPPES record last updated: August 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About James H Mersey M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JAMES H MERSEY M.D. (NPI 1669477683) is an individual endocrinology, diabetes & metabolism provider in The Villages, Florida, licensed in Florida (ME116216) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Johns Hopkins University School Of Medicine (1976).

NPPES Registry Identity

NPI1669477683

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameJAMES H MERSEYCredential: M.D.

Location Address2955 BROWNWOOD BLVDThe Villages, FL 32163-2039

Mailing Address1667 Wading Heron WayThe Villages, FL 32163-2147

Phone(352) 674-8700

Fax(352) 674-8714

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 1976

Enumeration DateJune 16, 2005

Last NPPES UpdateAugust 18, 2025

NPPES CertifiedAugust 18, 2025

✔ NPI 1669477683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

Licenses✔ Licensed in FL · ME116216✔ Licensed in MD · D19329

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

2955 BROWNWOOD BLVD, The Villages, FL 32163

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Secondary Practice Locations 2

Location 11400 N US Highway 441, Suite 810The Villages, FL 32159-8975 · Phone (352) 674-8700 · Fax (352) 674-8714

Location 21451 El Camino RealThe Villages, FL 32159-0041 · Phone (352) 751-8000

Other Identifiers 1

Medicaid053771300MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James H Mersey M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486551116

PECOS Enrollment IDI20040721001703, I20131119000911

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show James Mersey reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Centerwell Senior Primary Care Vitality Inc

Same address

Internal Medicine

2955 BROWNWOOD BLVD STE 403
The Villages, FL 32163

Reassigned Medicare billing, Florida enrollment
167 clinicians in this Medicare group

NPI 1457223489 (352) 674-8700

The Villages Health System LLC

4.0 mi

General Practice

779 KRISTINE WAY
The Villages, FL 32163

Reassigned Medicare billing, Florida enrollment
167 clinicians in this Medicare group

NPI 1699012922 (352) 674-1700

Privia Care Center LLC

747 mi

Internal Medicine

950 N GLEBE RD, SUITE 4000
Arlington, VA 22203

Reassigned Medicare billing, Maryland enrollment
339 clinicians in this Medicare group

NPI 1164874426 (571) 366-8850

Privia Medical Group, LLC

747 mi

Internal Medicine

950 N GLEBE RD STE 700
Arlington, VA 22203

Reassigned Medicare billing, Maryland enrollment
668 clinicians in this Medicare group

NPI 1013042480 (571) 366-8850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

238 services229 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

133 services133 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

83 services79 patients

Dxa bone density measurement of hip, pelvis, spine including spine fracture assessment 77085

A DXA bone density measurement is a non-invasive scan that helps assess the strength of your bones, specifically in the hip, pelvis, and spine areas. It can detect early signs of osteoporosis and evaluate fracture risk. This test uses low-dose X-rays for accurate results.

55 services55 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

29 services26 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32163 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.04 typical visit price

range $56.00 – $171.84

Typical copayment $32.51 (range $14.00 – $42.96)

Most-billed visit code 99204

Established Patient

$99.16 typical visit price

range $17.57 – $139.16

Typical copayment $24.79 (range $4.39 – $34.79)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.88/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

88.87

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Breast Cancer Screening

59%258 patients3/55-star benchmark: 93%

Cervical Cancer Screening

47%79 patients2/55-star benchmark: 98%

Closing the Referral Loop: Receipt of Specialist Report

53%57 patients3/55-star benchmark: 87%

Colorectal Cancer Screening

56%477 patients3/55-star benchmark: 88%

Controlling High Blood Pressure

62%539 patients3/55-star benchmark: 91%

Diabetes: Eye Exam

16%291 patients1/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

7%291 patients5/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

94%1,093 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

27%802 patients2/55-star benchmark: 100%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 20% · 874 patients

19%874 patients

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

87%627 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 1% · 799 patients

Patients totalRate: 9% · 820 patients

9%820 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 10

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224

DME-Other DME · category DE017N

16 suppliers140 claims1,902 services$17.90 avg. paid by Medicare

Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225

DME-Other DME · category DE017N

16 suppliers140 claims4,428 services$2.35 avg. paid by Medicare

Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238

DME-Medical/Surgical Supplies · category DA000N

4 suppliers26 claims26 services$172.27 avg. paid by Medicare

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

34 suppliers161 claims716 services$6.25 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

18 suppliers53 claims95 services$1.07 avg. paid by Medicare

For diabetics only, fitting (including follow-up), custom preparation and supply of off-the-shelf depth-inlay shoe manufactured to accommodate multi-density insert(s), per shoe A5500

DME-Orthotic Devices · category DF000N

3 suppliers11 claims22 services$61.51 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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