Toby B. Karyadi, CRNP
Family Nurse Practitioner · Gaithersburg, MD
Toby B. Karyadi, CRNP is a family nurse practitioner with a practice address in Gaithersburg, Maryland, and NPI 1013170422, issued on Jul 7, 2008. Check the license (Maryland R177118, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Toby B. Karyadi
- Credential
- CRNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- R177118 MD
Self-reported in NPPES; status is on the state search - Practice location
- 18550 Office Park Dr, Gaithersburg, MD 20886
- Phone
- (301) 330-2700
- Enumerated
- Jul 7, 2008
- Record last updated
- Jul 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (301) 990-7170
- Medicare enrollment
- Enrolled (PECOS I20150408000956); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,124 in Maryland → Look up another NPI →
Verify Toby B. Karyadi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R177118Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average family nurse practitioner in 2024
980 Medicare Part D claims for 217 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium53 claims
- Atorvastatin Calcium48 claims
- Hydrochlorothiazide40 claims
- Amlodipine Besylate32 claims
- Azithromycin30 claims
- Ciprofloxacin Hcl28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,434.85
69 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Comprehensive Primary Care And Associates LLCRockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Toby B. Karyadi among 4,124 family nurse practitioner records in Maryland
Toby B. Karyadi, CRNP is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 11% of them.
- NPI issued2008 · 11% of these records are older, 87% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2006 · median 2019 among the 2,370 with a school on file
- Record last updated2008 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 family nurse practitioner records list a practice address in Gaithersburg
They are 59 of the 2,580 NPPES records with a practice address in Gaithersburg, and 4,124 family nurse practitioner records in Maryland.
All 4,124 in Maryland → Every provider in Gaithersburg → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Carrie Baran, NURSE PRACTITIONERGaithersburg, MD 208861497274757
- Sharon Brooks, CRNP, FNP-BCGaithersburg, MD 208861063783504
- Caroline Chinyani, NPMontgomery Village, MD 208861417627175
- Patricia Hughes, NPMontgomry Village, MD 208861184613556
- Elizabeth Joyal, FNP-CMontgomery Village, MD 208861669869194
- Taylor KempGaithersburg, MD 208861194405431
- Alina Maharjan, DNP, FNPMontgomery Village, MD 208861205761228
- Olukemi Ogunmakinwa, CRNPMontgomery Village, MD 208861629439948
Common questions
What is Toby B. Karyadi, CRNP's NPI number?
Toby B. Karyadi, CRNP's National Provider Identifier (NPI) is 1013170422, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Toby B. Karyadi, CRNP located?
The NPPES record lists a practice address at 18550 Office Park Dr, Gaithersburg, MD, 20886. Phone: (301) 330-2700. Providers update this record themselves, so call before visiting.
How can I verify Toby B. Karyadi, CRNP's license?
NPPES lists Maryland license number R177118, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Toby B. Karyadi, CRNP prescribe under Medicare Part D?
In 2024, Toby B. Karyadi, CRNP had 980 Medicare Part D claims for 217 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.