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DR. THIRI S DEMARS M.D., M.P.H. (C)
NPI 1235525510
Family Medicine in Solomons, MD

Active since April 13, 2015PECOS EnrolledAccepts Medicare Assignment
14090 HG TRUEMAN RD STE 2100, SOLOMONS, MD 20688(410) 394-3712(410) 394-3714 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 9, 2025, Mar 11, 2020, Feb 16, 2016 (3 updates tracked since 2016).

About Dr. Thiri S Demars M.d., M.p.h. (c) NPPES

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

DR. THIRI S DEMARS M.D., M.P.H. (C) (NPI 1235525510) is an individual family medicine provider in Solomons, Maryland, licensed in Maryland (D0093116) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with University Of Md Charles Regional Medical Center, and maintains a secondary practice location in Prince Frederick.

NPPES Registry Identity

NPI1235525510
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. THIRI S DEMARSCredential: M.D., M.P.H. (C)
Location Address14090 HG TRUEMAN RD STE 2100Solomons, MD 20688-3151
Mailing Address100 Hospital RdPrince Frederick, MD 20678-4017 · (410) 414-4791
Phone(410) 394-3712
Fax(410) 394-3714
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2014
Enumeration DateApril 13, 2015
Last NPPES UpdateMay 9, 20253 updates tracked since enumeration
NPPES CertifiedMay 9, 2025
✔ NPI 1235525510 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in MD · D0093116✔ Licensed in PA · MD463969
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
14090 HG TRUEMAN RD STE 2100, Solomons, MD 20688
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Other Names 1

Former Name (1)Dr. Thiri Sandar Bickel M.d., Mph

Secondary Practice Location 1

Location 1110 Hospital Rd Ste And111Prince Frederick, MD 20678-4019 · Phone (410) 535-4488 · Fax (443) 771-8114

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thiri S Demars M.d., M.p.h. (c) 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 ID9931481868
PECOS Enrollment IDI20220119001461
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.

Areas of Expertise CMS Part B claims 7

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.

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.
53 services53 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
33 services33 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
25 services25 patients
Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus 87637
This test identifies if you have COVID-19, influenza A or B, or respiratory syncytial virus. It uses a multiplex amplified probe technique, which amplifies and detects specific genetic material of the viruses, helping in accurate diagnosis.
17 services17 patients
Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 87651
This test detects Group A Streptococcus bacteria in your body. It uses an amplified probe technique, which amplifies the bacteria's nucleic acid, making it easier to identify. This test helps diagnose conditions like strep throat or scarlet fever.
17 services17 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

University Of MD Charles Regional Medical Center

Acute Care Hospitals · La Plata, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210035
Location5 Garrett AvenueLa Plata, MD 20646 · Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20688 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
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
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.

Other Providers at the Same Location NPPES 4

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

MRS. KIMBERLY E COOK C.R.N.P.
Nurse Practitioner (Family)
14090 HG TRUEMAN RD STE 2100
SOLOMONS, MD 20688
Calvert County (410) 394-3712
AIDA RAAFAT MANSOUR VARGHESE
Nurse Practitioner (Family)
14090 HG TRUEMAN RD STE 2100
SOLOMONS, MD 20688
Calvert County (410) 394-3712
DR. MARIA NOVELLA C PAPINO HIGGS M.D.
Family Medicine
14090 HG TRUEMAN RD STE 2100
SOLOMONS, MD 20688
Calvert County (410) 394-3712
CALVERTHEALTH MEDICAL GROUP, LLC
Family Medicine
14090 HG TRUEMAN RD STE 2100
SOLOMONS, MD 20688
Calvert County (410) 394-3712

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 Thiri Demars's NPI number?

The NPI number for Thiri Demars is 1235525510. It was assigned to this individual provider in the NPPES registry on April 13, 2015. The provider is also known as Dr. Thiri Sandar Bickel M.D., Mph.

Where is Thiri Demars located?

Thiri Demars practices at 14090 Hg Trueman Rd Ste 2100, Solomons, MD 20688. The listed phone number is (410) 394-3712.

What is Thiri Demars's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Thiri Demars enrolled in Medicare?

Yes. Thiri Demars 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.

Is Thiri Demars affiliated with any hospitals?

According to CMS data, Thiri Demars is affiliated with University Of MD Charles Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Thiri Demars was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.