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DOUGLAS E MESLER M.D., MPH
NPI 1205827185
Internal Medicine - Nephrology in Tewsbury, MA

Active since October 31, 2005PECOS EnrolledAccepts Medicare Assignment
14.47/100
CMS Quality Rating
600 CLARK RD., 2FLR, TEWSBURY, MA 01876(978) 453-1811(978) 452-9111 Get Directions Write a Review

NPPES record last updated: December 8, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 8, 2023, Jul 23, 2020 (2 updates tracked since 2020).

About Douglas E Mesler M.d., Mph NPPES

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

DOUGLAS E MESLER M.D., MPH (NPI 1205827185) is an individual nephrology provider in Tewsbury, Massachusetts, licensed in Massachusetts (70684) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1205827185
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDOUGLAS E MESLERCredential: M.D., MPH
Location Address600 CLARK RD., 2FLRTewsbury, MA 01876
Mailing Address600 Clark Rd., 2flrTewsbury, MA 01876 · (978) 453-1811 · Fax (978) 452-9111
Phone(978) 453-1811
Fax(978) 452-9111
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateOctober 31, 2005
Last NPPES UpdateDecember 8, 20232 updates tracked since enumeration
NPPES CertifiedDecember 8, 2023
✔ NPI 1205827185 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in MA · 70684
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
600 CLARK RD., 2FLR, Tewsbury, MA 01876
Open in Google Maps ↗

Other Identifiers 1

Medicaid110220862MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Taro Health.Insurance ›

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

Douglas E Mesler M.d., Mph 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 ID2567405285
PECOS Enrollment IDI20050603000572
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

2

Medicare enrollment records show Douglas Mesler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nephrology Asssociates Of The Merrimack Valley PC
Same address
Nephrology
600 CLARK RD
Tewksbury, MA 01876
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4 clinicians in this Medicare group
NPI 1700083433 (978) 453-1811
The Commonwealth Of Massachusetts
2.9 mi
Long Term Care Hospital
365 EAST STREET
Tewksbury, MA 01876
  • Reassigned Medicare billing, Massachusetts enrollment
  • 97 clinicians in this Medicare group
NPI 1871680496 (978) 851-7321

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 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
582 services164 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.
277 services157 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
180 services83 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
155 services126 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
43 services37 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
41 services36 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lowell General Hospital

Acute Care Hospitals · Lowell, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220063
Location295 Varnum AvenueLowell, MA 01854 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01876 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

14.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Improvement Activities0
Cost48.24

Referred Medical Equipment & Supplies CMS DME claims 4

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

Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers16 claims2,640 services$0.58 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier12 claims720 services$0.99 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
2 suppliers17 claims17 services$16.75 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers23 claims25 services$11.41 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Douglas Mesler's NPI number?

The NPI number for Douglas Mesler is 1205827185. It was assigned to this individual provider in the NPPES registry on October 31, 2005.

Where is Douglas Mesler located?

Douglas Mesler practices at 600 Clark Rd., 2flr, Tewsbury, MA 01876. The listed phone number is (978) 453-1811.

What is Douglas Mesler's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Douglas Mesler enrolled in Medicare?

Yes. Douglas Mesler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Douglas Mesler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Mesler reassigns Medicare benefits to 2 organizations: Nephrology Asssociates Of The Merrimack Valley PC (Tewksbury, MA) and The Commonwealth Of Massachusetts (Tewksbury, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Douglas Mesler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Douglas Mesler accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Douglas Mesler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Douglas Mesler affiliated with any hospitals?

According to CMS data, Douglas Mesler is affiliated with Lowell General Hospital.

When was this NPI record last updated?

The NPPES record for Douglas Mesler was last updated on December 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.