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DAISY DUAN M.D.
NPI 1982021226
Internal Medicine - Endocrinology, Diabetes & Metabolism in Baltimore, MD

Active since March 25, 2014PECOS Enrolled
74.39/100
CMS Quality Rating
600 N WOLFE ST BLDG, 1830 BLDG, SUITE 333, BALTIMORE, MD 21287(410) 955-3921(410) 367-2042 Get Directions Write a Review

NPPES record last updated: July 7, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Daisy Duan M.d. NPPES

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

DAISY DUAN M.D. (NPI 1982021226) is an individual endocrinology, diabetes & metabolism provider in Baltimore, Maryland, licensed in Maryland (D91158) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1982021226
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDAISY DUANCredential: M.D.
Location Address600 N WOLFE ST BLDG, 1830 BLDG, SUITE 333Baltimore, MD 21287-0005
Mailing Address6201 Greenleigh AveBaltimore, MD 21220-2004 · (410) 933-6423
Phone(410) 955-3921
Fax(410) 367-2042
Sole ProprietorNo
Medical School CMSNew York University School Of MedicineGraduated 2010
Enumeration DateMarch 25, 2014
Last NPPES UpdateJuly 7, 2021
NPPES CertifiedJuly 7, 2021
✔ NPI 1982021226 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in MD · D91158
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.
600 N WOLFE ST BLDG, Baltimore, MD 21287
Open in Google Maps ↗

Other Names 1

Former Name (1)Siyu Duan

Secondary Practice Location 1

Location 117 E 102nd St, 7th FloorNew York, NY 10029-5204 · Phone (212) 659-8551

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Daisy Duan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779831763
PECOS Enrollment IDI20200419000213
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.

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
36 services26 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
33 services23 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.
31 services27 patients
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.
27 services24 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.
22 services22 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.
19 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

Referred Medical Equipment & Supplies CMS DME claims

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

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
10 suppliers113 claims114 services$182.62 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 Daisy Duan's NPI number?

The NPI number for Daisy Duan is 1982021226. It was assigned to this individual provider in the NPPES registry on March 25, 2014. The provider is also known as Siyu Duan.

Where is Daisy Duan located?

Daisy Duan practices at 600 N Wolfe St Bldg 1830 Bldg, Suite 333, Baltimore, MD 21287. The listed phone number is (410) 955-3921.

What is Daisy Duan's specialty?

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

Is Daisy Duan enrolled in Medicare?

Yes. Daisy Duan is registered in the Medicare PECOS enrollment system.

Is Daisy Duan affiliated with any hospitals?

According to CMS data, Daisy Duan is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.

When was this NPI record last updated?

The NPPES record for Daisy Duan was last updated on July 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.