Dr. Nada Alachkar , MD
Internal Medicine - Nephrology • Baltimore, MD
600 N Wolfe St, Brady 505
Baltimore, MD 212870005
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Nada Alachkar is listed in NPPES under Internal Medicine - Nephrology.
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NPI assigned on May 3, 2006; this date does not establish years in practice.
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Published CMS data list 1,340 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99233 — Subsequent hospital care with moderate levelof medical decision making: 590 service units.
- 99215 — Established patient outpatient office visit: 300 service units.
- G2211 — Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 267 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 8 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,140 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Prednisone — 173 prescription fills, including refills.
- Amlodipine Besylate — 111 prescription fills, including refills.
- Atorvastatin Calcium — 98 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 28 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 80 clinicians with data). Median for this group: 1,036. Middle half: 536 to 1,375.
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 217 clinicians with data). Median for this group: 1,465. Middle half: 852 to 2,090.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,160 in 2020 to 1,340 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
600 N Wolfe St
Brady 505
Baltimore, MD 212870005
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Johns Hopkins University. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1994
What Public CMS Data Show
Internal Medicine - Nephrology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
378 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $143,993 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $110,662 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
2,455 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$108,793 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $118.73 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
32 years (graduated 1994)
CMS Doctors and Clinicians data list 1994 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Alachkar has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Alachkar as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Baltimore and Maryland
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 80 clinicians with data). Median for this group: 1,036. Middle half: 536 to 1,375.
Close to the middle for clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 217 clinicians with data). Median for this group: 1,465. Middle half: 852 to 2,090.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 80 clinicians with data). Median for this group: $124,905. Middle half: $63,718 to $177,347.
A lower Medicare-allowed amount than 60% of clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 217 clinicians with data). Median for this group: $204,103. Middle half: $99,034 to $270,869.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 80 clinicians with data). Median for this group: $98,606. Middle half: $49,335 to $138,532.
A lower Medicare payment amount than 60% of clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 217 clinicians with data). Median for this group: $154,432. Middle half: $78,151 to $207,012.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 77 clinicians with data). Median for this group: 465. Middle half: 194 to 923.
More Part D prescriptions than 75% of clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 221 clinicians with data). Median for this group: 540. Middle half: 225 to 1,098.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Internal Medicine - Nephrology in Baltimore, MD (2024, 77 clinicians with data). Median for this group: $64,225. Middle half: $23,622 to $121,814.
Close to the middle for clinicians listed under Internal Medicine - Nephrology in Maryland (2024, 221 clinicians with data). Median for this group: $83,643. Middle half: $27,276 to $164,592.
121 active clinicians are listed under Internal Medicine - Nephrology with a practice address in Baltimore, MD (337 in Maryland).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Baltimore
35.5% of these 121 clinicians have the CMS telehealth indicator.
43% of these 121 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 16% from 1,160 in 2020 to 1,340 in 2024.
- 2020: 1,160
- 2021: 1,352
- 2022: 1,206
- 2023: 1,127
- 2024: 1,340
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Medicare-allowed amount
Medicare-allowed amount stayed about the same: $137,140 in 2020 and $143,993 in 2024.
- 2020: $137,140
- 2021: $169,698
- 2022: $151,715
- 2023: $150,204
- 2024: $143,993
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Paid by Medicare
Paid by Medicare stayed about the same: $107,444 in 2020 and $110,662 in 2024.
- 2020: $107,444
- 2021: $132,876
- 2022: $117,204
- 2023: $115,130
- 2024: $110,662
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 22% from 1,466 in 2020 to 1,140 in 2024.
- 2020: 1,466
- 2021: 1,534
- 2022: 1,288
- 2023: 934
- 2024: 1,140
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30-day fills
30-day fills decreased 19% from 3,046 in 2020 to 2,455 in 2024.
- 2020: 3,046
- 2021: 3,501
- 2022: 3,017
- 2023: 2,076
- 2024: 2,455
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Part D drug cost
Part D drug cost decreased 86% from $805,305 in 2020 to $108,793 in 2024.
- 2020: $805,305
- 2021: $116,981
- 2022: $87,524
- 2023: $60,624
- 2024: $108,793
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2024 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $118.73.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
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XPHOZAH 30 MG | General | $118.73 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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590 | 119 | $303.32 | $119.94 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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300 | 254 | $320.57 | $144.69 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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267 | 232 | $51.00 | $16.71 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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100 | 89 | $578.96 | $173.25 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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33 | 16 | $195.55 | $80.03 |
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99239
Hospital discharge day management, more than 30 minutes
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25 | 24 | $319.32 | $112.95 |
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99238
Hospital discharge day management, 30 minutes or less
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14 | 14 | $202.29 | $82.79 |
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50200
Needle biopsy of kidney
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11 | 11 | $493.09 | $128.27 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Prednisone | Prednisone | 173 | 10,462 | $1,207.02 | 55 |
| Amlodipine Besylate | Amlodipine Besylate | 111 | 8,270 | $669.49 | 41 |
| Atorvastatin Calcium | Atorvastatin Calcium | 98 | 7,238 | $1,188.29 | 44 |
| Losartan Potassium | Losartan Potassium | 75 | 4,842 | $705.80 | 27 |
| Pantoprazole Sodium | Pantoprazole Sodium | 70 | 5,073 | $814.19 | 29 |
| Carvedilol | Carvedilol | 62 | 4,722 | $711.50 | 28 |
| Tamsulosin Hcl | Tamsulosin Hcl | 62 | 4,440 | $998.64 | 22 |
| Tacrolimus | Tacrolimus | 42 | 1,950 | $13,699.92 | 13 |
| Nifedipine Er | Nifedipine | 41 | 2,790 | $1,984.37 | 16 |
| Lisinopril | Lisinopril | 39 | 2,250 | $83.64 | 12 |
| Lokelma | Sodium Zirconium Cyclosilicate | 38 | 1,130 | $30,975.98 | 14 |
| Famotidine | Famotidine | 36 | 2,340 | $514.18 | 15 |
| Furosemide | Furosemide | 33 | 2,010 | $156.23 | 14 |
| Metoprolol Tartrate | Metoprolol Tartrate | 25 | 2,250 | $225.47 | 11 |
| Clonidine Hcl | Clonidine Hcl | 24 | 1,080 | $139.19 | — |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 23 | 1,720 | $2,742.42 | — |
| Acyclovir | Acyclovir | 20 | 605 | $270.98 | — |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 20 | 1,260 | $338.77 | — |
| Metoprolol Succinate | Metoprolol Succinate | 18 | 1,320 | $206.39 | — |
| Pravastatin Sodium | Pravastatin Sodium | 18 | 1,140 | $492.71 | — |
| Hydralazine Hcl | Hydralazine Hcl | 18 | 720 | $69.09 | — |
| Envarsus Xr | Tacrolimus | 18 | 1,360 | $26,049.47 | — |
| Mycophenolic Acid | Mycophenolate Sodium | 14 | 720 | $4,844.12 | — |
| Gabapentin | Gabapentin | 13 | 810 | $100.85 | — |
| Omeprazole | Omeprazole | 13 | 1,110 | $57.83 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207RN0300X
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.
NUCC Taxonomy Code: 208M00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEPHROLOGY
I20180424001321
DC
8921083320
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Johns Hopkins University
600 N Wolfe St, Baltimore, MD 212870005
Phone: 4105024340
Johns Hopkins University
600 N Wolf St, Baltimore, MD 212870005
Phone: 4109555000
Johns Hopkins University
601 N Caroline St, Baltimore, MD 212870006
Phone: 4109555080
Johns Hopkins University
5601 Lloch Raven Blvd, Baltimore, MD 212392945
Phone: 4434444714
Johns Hopkins University
6201 Greenleigh Ave, Middle River, MD 212202004
Johns Hopkins University
6201 Greenleigh Ave, Middle River, MD 212202004
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Nephrology
Doctor of Medicine (M.D.)
Internal Medicine - Nephrology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated May 03, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine - Nephrology Specialists in Baltimore
- Dr. Dhaval Aghera, MD
- Dr. Divyanshu Malhotra, MD
- Dr. Simran Dhillon, MD
- Dr. Novia Singh, DO
- Dr. Edward Kraus, MD
- Dr. Christina Tamargo, MD
Mailing Address
Po Box 64264
Baltimore, MD 212644264
Phone: 4109550607