1. Home
  2. Directory
  3. Maryland
  4. Baltimore
  5. Hospitalist
  6. NPI Profile

SANDRA MARIA JOHNSON MD
NPI 1881182939
Hospitalist in Baltimore, MD

Active since April 24, 2018PECOS Enrolled
74.39/100
CMS Quality Rating
600 N WOLFE STREET, MEYER 8-134, BALTIMORE, MD 21287(410) 614-4474(410) 367-2770 Get Directions Write a Review

NPPES record last updated: May 12, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 12, 2023, Aug 9, 2021, Apr 24, 2018 (3 updates tracked since 2018).

About Sandra Maria Johnson Md NPPES

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

SANDRA MARIA JOHNSON MD (NPI 1881182939) is an individual hospitalist provider in Baltimore, Maryland, licensed in Maryland (D91937) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in Richmond.

NPPES Registry Identity

NPI1881182939
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameSANDRA MARIA JOHNSONCredential: MD
Location Address600 N WOLFE STREET, MEYER 8-134Baltimore, MD 21287
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-6423
Phone(410) 614-4474
Fax(410) 367-2770
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 24, 2018
Last NPPES UpdateMay 12, 20233 updates tracked since enumeration
NPPES CertifiedMay 12, 2023
✔ NPI 1881182939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in MD · D91937
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License D91937 (MD)
600 N WOLFE STREET, Baltimore, MD 21287
Open in Google Maps ↗

Secondary Practice Location 1

Location 11250 E Marshall StRichmond, VA 23298-5051 · Phone (804) 828-9726

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sandra Maria Johnson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901152446
PECOS Enrollment IDI20210729003248
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 Sandra Johnson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins University
Same address
Pediatric Allergy/Immunology
600 N WOLFE ST
Baltimore, MD 21287
  • Reassigned Medicare billing, Maryland enrollment
  • 4,483 clinicians in this Medicare group
NPI 1023018413 (410) 933-1182
Johns Hopkins University
0.1 mi
Hospitalist
600 N WOLFE ST
Baltimore, MD 21287
  • Reassigned Medicare billing, Maryland enrollment
  • 338 clinicians in this Medicare group
NPI 1902332133 (410) 955-5000

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 5

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 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
202 services103 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.
60 services39 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
59 services58 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
42 services24 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
35 services34 patients

Hospital Affiliations CMS Care Compare

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

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.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier15 claims15 services$71.71 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.

DR. WHITNEY ERIN PARKER MD, PHD
Neurological Surgery
600 N WOLFE STREET, PHIPPS 554
BALTIMORE, MD 21287
Baltimore City (410) 955-7851
RACHEL AARON PHD
Psychologist (Clinical)
600 N WOLFE STREET, MEYER 163
BALTIMORE, MD 21287
Baltimore City (410) 614-4030
ALLISON WEAVER MD
Internal Medicine
600 N WOLFE STREET, MEYER 8-134
BALTIMORE, MD 21287
Baltimore City (410) 614-4474
DR. JANA CHRISTIAN MD
Internal Medicine
600 N WOLFE STREET, MEYER 8-134
BALTIMORE, MD 21287
Baltimore City (410) 614-4474
JESINTHA STEPHENSON MD
Hospitalist
600 N WOLFE STREET, MEYER 8-134
BALTIMORE, MD 21287
Baltimore City (410) 614-4474
HAMILTON MOSES III M.D.
Psychiatry & Neurology (Neurology)
600 N WOLFE STREET, THE JOHNS HOPKINS HOSPITAL
BALTIMORE, MD 21287
Baltimore City (434) 984-2016
DR. GERARD LIMERICK MD
Physical Medicine & Rehabilitation
600 N WOLFE STREET, NELSON 2-131
BALTIMORE, MD 21287
Baltimore City (410) 955-1818
DR. COLIN KANE OD
Optometrist
600 N WOLFE STREET, WILMER 233
BALTIMORE, MD 21287
Baltimore City (410) 955-8679

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 Sandra Johnson's NPI number?

The NPI number for Sandra Johnson is 1881182939. It was assigned to this individual provider in the NPPES registry on April 24, 2018.

Where is Sandra Johnson located?

Sandra Johnson practices at 600 N Wolfe Street Meyer 8-134, Baltimore, MD 21287. The listed phone number is (410) 614-4474.

What is Sandra Johnson's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Sandra Johnson enrolled in Medicare?

Yes. Sandra Johnson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sandra Johnson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Johnson reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Sandra Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Sandra Johnson affiliated with any hospitals?

According to CMS data, Sandra Johnson is affiliated with Johns Hopkins Hospital, The.

When was this NPI record last updated?

The NPPES record for Sandra Johnson was last updated on May 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.